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7.76k
sciq
sciq_01_08134
What produces microspores that develop into pollen grains containing male gametophytes?
[ "petals", "leaves", "stems", "stamens" ]
D
ARC-Easy
arc_04_01295
Scientists recorded the hourly temperature at a weather station for the month of July and want to quickly measure a trend over time in temperature changes. Which of these formats would be the most appropriate representation of the temperature data to quickly measure any trend?
[ "bar graph", "line graph", "pie chart", "data table" ]
B
null
openbookqa
obqa_02_01336
transpiration happens in the leaves of what?
[ "rocks", "shrubbery", "cars", "animals" ]
B
transpiration usually happens in the leaves of a plant
medmcqa
medmcqa_05_00164
A 10 year old child is always restless, inattentive to study and always wants to play outside. Parents are extremely distressed. What is the most probable diagnosis?
[ "Autism", "Specific learning disability", "ADHD", "Dyslexia" ]
C
Ans. is 'c' i.e., ADHD * This child has - i) Restlessness ii) Inattentiveness iii) Uncontrolled desire to play outside.* All are features of attention deficit hyperkinetic disorder.ADHD* Child with ADHD presents with hyperactivity, impulsiveness and inattentiveness, restlessness, decreased self control, distractability...
sciq
sciq_01_01732
What debated therapy offers a potential method for replacing neurons lost to injury or disease?
[ "stem cell therapy", "cell duplication", "cell production therapy", "stem cell reduction" ]
A
openbookqa
obqa_02_00159
Without reliable sources of food or water
[ "creatures experience some suffering", "animals must make their own", "dogs will need to be fed", "organisms need to be cared for" ]
A
loss of resources has a negative impact on the organisms in an area
openbookqa
obqa_02_00108
Where in the world will a person have the smallest shadow at noon?
[ "the arctic circle", "the south pole", "the north pole", "near the equator" ]
D
as a source of light moves directly overhead of an object , the size of the shadow of that object will decrease
sciq
sciq_01_01491
What is produced when sulfur and oxygen combine?
[ "hydrogen oxide", "sulfur oxide", "Acidic oxides", "Basic Oxides" ]
B
Sulfur oxides are produced when sulfur and oxygen combine. This happens when coal that contains sulfur burns.
math_qa
mathqa_03_01493
what is the square root of 9 ?
[ "1", "3", "2", "4" ]
B
"3 x 3 = 9 answer b"
math_qa
mathqa_03_02462
seed mixture x is 40 percent ryegrass and 60 percent bluegrass by weight ; seed mixture y is 25 percent ryegrass and 75 % fescue . if a mixture of x and y contains 30 % ryegrass , what percent of the weight of the mixture is x ?
[ "10 %", "33 1 / 3 %", "40 %", "50 %" ]
B
"assuming the weight of the mixture to be 100 g * * , then the weight of ryegrass in the mixture would be 30 g . also , assume the weight mixture x used in the mixture is xg , then the weight of mixture y used in the mixture would be ( 100 - x ) g . so we can now equate the parts of the ryegrass in the mixture as : 0.4...
ARC-Challenge
arc_04_02162
How many times does Earth rotate on its axis in one day?
[ "once", "twice", "24 times", "365 times" ]
A
null
math_qa
mathqa_03_03582
john traveled 80 % of the way from yellow - town to green - fields by train at an average speed of 80 miles per hour . the rest of the way john traveled by car at an average speed of v miles per hour . if the average speed for the entire trip was 45 miles per hour , what is v in miles per hour ?
[ "30", "40", "50", "55" ]
B
"hibunuel the question seems incorrect . it should not be 80 % at the speed of 80 . however if it ' s 20 % at the speed of 80 , answer comes out 55 . the question is correct . here ' s the explanation : let distance be d . we can find the total timeequate it , which comes as : 0.8 d / 80 + 0.2 d / v = d / 40 = > v = 40...
ARC-Easy
arc_04_01292
Repeated pesticide use on an insect population can result in some of the insects becoming resistant to that pesticide over time. Which process is responsible for the pesticides no longer being effective on the insects?
[ "divergent evolution", "natural selection", "bottleneck effect", "selective breeding" ]
B
null
ARC-Easy
arc_04_01127
Clearing forests of trees and vegetation for human development can have major impacts on the ecosystem. Which would most likely occur after a forested area is cleared?
[ "an increase in habitat for wildlife", "a decrease in food competition", "an increase in soil erosion", "a decrease in water runoff" ]
C
null
math_qa
mathqa_03_00962
there are 70 supermarkets in the fgh chain . all of them are either in the us or canada . if there are 14 more fgh supermarkets in the us than in canada , how many fgh supermarkets are there in the us ?
[ "20", "31", "42", "53" ]
C
"x + ( x - 14 ) = 70 - - > x = 42 . answer : c ."
sciq
sciq_01_00084
Nutrition and diet affect your metabolism. more energy is required to break down fats and proteins than this?
[ "vitamins", "electrolytes", "minerals", "carbohydrates" ]
D
24.7 Nutrition and Diet Nutrition and diet affect your metabolism. More energy is required to break down fats and proteins than carbohydrates; however, all excess calories that are ingested will be stored as fat in the body. On average, a person requires 1500 to 2000 calories for normal daily activity, although routine...
math_qa
mathqa_03_04840
35 - [ 23 - { 15 - x } ] = 12 × 2 ÷ 1 / 2
[ "34", "32", "17", "27" ]
B
explanation : 35 - [ 23 - { 19 - ( 15 - x ) } ] = 12 × 2 × 2 = 48 = > 35 - 23 + ( 19 - 15 + x ) = 48 = > 12 + 4 + x = 48 = > x = 48 - ( 4 + 12 ) = 32 answer : option b
openbookqa
obqa_02_00865
A waste product of human respiration
[ "is a vital resource to pigs", "is a vital resource to daffodils", "is a vital resource to oceans", "is a vital resource to bees" ]
B
In the respiration process carbon dioxide is a waste product
medmcqa
medmcqa_05_03790
Which ones can be easily cultured from CSF?
[ "Polio", "Coxsackie", "Echo", "Mumps" ]
D
Ans. (d) Mumps Ref. fawetz 25/e 719 Virus can be successfully isolated from the CSF in: Mumps virus Herpers simplex meningitis Enterovirus
openbookqa
obqa_02_03469
Blind people are unable to see what the shapes of things are, but they can still sense it thanks contacting it via their
[ "flying", "singing", "smiling", "hands" ]
D
the shape of an object can be discovered through feeling that object
medmcqa
medmcqa_05_01192
Drug that leads to glucose intolerance:
[ "Hydrochlorthiazide", "ACE inhiitors", "Verapamil", "Sulfonylureas" ]
A
Ans. (a) HydrochlorthiazideRef KDT 6th. / 274Drugs causing glucose intolerance (hyperglycemia)* Glucocorticoids* Thiazides* Phenytoin* Pentamidine* Diazoxide* b blockers (non selective)* Protease inhibitors* b-IFN* Clozapine* b adrenergic agonist* Thyroid hormone* Nicotinic acidNote:* Sulfonylureas are oral hypoglycemi...
sciq
sciq_01_02908
What type of minerals are often found where seas once covered the land?
[ "magnesium", "sea salt", "crystals", "carbonate" ]
D
Carbonate minerals are often found where seas once covered the land. Some carbonate minerals are very common. Calcite contains calcium, carbon, and oxygen. Have you ever been in a limestone cave or seen a marble tile? Calcite is in both limestone and marble. Azurite and malachite are also carbonate minerals. They conta...
sciq
sciq_01_00880
Genetic diversity in a population comes from two main sources - sexual reproduction and what else?
[ "mutation", "education", "radiation", "pathogen" ]
A
Variation and Adaptation Natural selection can only take place if there is variation, or differences, among individuals in a population. Importantly, these differences must have some genetic basis; otherwise, selection will not lead to change in the next generation. This is critical because variation among individuals ...
medmcqa
medmcqa_05_01837
Transition temperature of lipid bilayers of cell membrane is increased by:
[ "Cholesterol", "Hydrocarbons", "Saturated fatty acids", "Unsaturated fatty acids" ]
C
The longer and more saturated fatty acids chains interact more strongly with each other through their longer hydrocarbon chains and thus cause higher values of transition temperature (Tm) i.e higher temperatures are required to increase the fluidity of the bilayer. Transition temperature (Tm):As the temperature increas...
sciq
sciq_01_01728
What is it called when breaks in bone occur that is usually caused by excessive stress on the bone?
[ "ruptures", "faults", "fragments", "fractures" ]
D
Fractures are breaks in bone, usually caused by excessive stress on bone. Fractures heal when osteoblasts form new bone. The animation at this link shows how this happens: http://www. youtube. com/watch?v=qVougiCEgH8 . Soon after a fracture, the body begins to repair the break. The area becomes swollen and sore. Within...
ARC-Easy
arc_04_00975
Which of the following describes how a microwave oven heats food?
[ "The oven's interior reflects heat onto the food.", "The oven's interior, like a lens, focuses heat onto the food.", "Water molecules in the food reflect energy from microwave radiation.", "Water molecules in the food absorb the energy of microwave radiation." ]
D
null
ARC-Easy
arc_04_01138
Which action is an example of an exothermic process?
[ "baking bread", "cooking an egg", "making ice cubes", "evaporation of water" ]
C
null
sciq
sciq_01_00523
What is the greatest contribution of arthropods to human food supply?
[ "reproduction", "pollination", "vegetation", "hibernation" ]
B
The intentional cultivation of arthropods and other small animals for human food, referred to as minilivestock, is now emerging in animal husbandry as an ecologically sound concept. However, the greatest contribution of arthropods to human food supply is by pollination. Three-fourths of the world’s flowering plants and...
openbookqa
obqa_02_01136
Which of the following might use Chia to fuel it?
[ "Bird", "Kite", "Plane", "Jet" ]
A
birds sometimes eat seeds
math_qa
mathqa_03_00530
| x + 3 | – | 2 - x | = | 8 + x | how many solutions will this equation have ?
[ "0", "1", "2", "3" ]
C
"you have | x + 3 | - | 4 - x | = | 8 + x | first , look at the three values independently of their absolute value sign , in other words : | x + 3 | - | 4 - x | = | 8 + x | ( x + 3 ) - ( 4 - x ) = ( 8 + x ) now , you ' re looking at x < - 8 , so x is a number less than - 8 . let ' s pretend x = - 10 here to make things...
sciq
sciq_01_02374
Tissues are organized by what?
[ "branches", "cells", "structures", "lipids" ]
B
Cells are organized into tissues, and tissues form organs.
math_qa
mathqa_03_01632
when positive integer n is divided by 4 , the remainder is 2 . when n is divided by 7 , the remainder is 5 . how many values less than 100 can n take ?
[ "0", "2", "3", "4" ]
C
"a quick approac to this q is . . the equation we can form is . . 3 x + 2 = 7 y + 5 . . 3 x - 3 = 7 y . . . 3 ( x - 1 ) = 7 y . . . so ( x - 1 ) has to be a multiple of 7 as y then will take values of multiple of 3 . . here we can see x can be 1 , 8,15 , 22,29 so 5 values till 100 is reached as ( 29 - 1 ) * 3 = 84 and ...
sciq
sciq_01_01543
Puberty and other physical changes occurs during which stage of development?
[ "adolescence", "infancy", "childhood", "adulthood" ]
A
Adolescence includes the physical changes of puberty among other changes.
openbookqa
obqa_02_03169
If a person is blind and needs to know the color of a sign, they
[ "have someone describe it", "fill out a form", "are out of luck", "make a best guess" ]
A
the color of an object can be discovered by looking at that object
ARC-Easy
arc_04_01916
Protein is used by the human body to
[ "build strong bones.", "absorb vitamins.", "repair cells.", "provide fiber." ]
C
null
sciq
sciq_01_11624
In earthworms, the skin serves as what type of organ?
[ "kidney", "respiratory", "excretory", "reproductive" ]
B
sciq
sciq_01_08346
Vertical layering is an important feature of the terrestrial type of what kind of community?
[ "biome", "habitat", "ecosystem", "environment" ]
A
sciq
sciq_01_10126
This bodily defense function attacks pathogens and includes inflammatory response and phagocytosis?
[ "third line of defense", "first line of defense", "second line of defense", "vomitting" ]
C
The second line of defense attacks pathogens that manage to enter the body. It includes the inflammatory response and phagocytosis by nonspecific leukocytes.
openbookqa
obqa_02_03444
Tearing an object changes that object's
[ "formation", "biology", "chemical composition", "nutrition" ]
A
the composition of something can be used to identify that something
openbookqa
obqa_02_02043
Which ingredient may cause chemical change?
[ "almonds", "milk", "citrus juice", "olive oil" ]
C
acid can cause chemical change
openbookqa
obqa_02_00291
ultraviolet light is found in light from where
[ "the flaming ball of gas we orbit", "giant planets in the neighborhood", "light sources that we create", "balls of fire lit with gas" ]
A
sunlight contains ultraviolet light
sciq
sciq_01_07541
The binding of complementary bases allows dna molecules to take their well-known shape, called a what?
[ "double helix", "simple helix", "triple helix", "single helix" ]
A
The binding of complementary bases allows DNA molecules to take their well-known shape, called a double helix . Figure below shows how two chains of nucleotides form a DNA double helix. A simplified double helix is illustrated in Figure below . It shows more clearly how the two chains are intertwined. The double helix ...
sciq
sciq_01_06887
What is the atomic number?
[ "number of protons", "Number of neutrons", "Number of electrons", "Speed of electrons" ]
A
In the modern periodic table, elements are organized by atomic number. The atomic number is the number of protons in an atom of an element. This number is unique for each element, so it seems like an obvious way to organize the elements. (Mendeleev used atomic mass instead of atomic number because protons had not yet b...
sciq
sciq_01_04390
What do scientists collect to test a hypothesis?
[ "books", "arguements", "evidence", "beilefs" ]
C
Scientists collect evidence to test a hypothesis. The evidence may refute the hypothesis. In that case, it will be thrown out. The evidence may support the hypothesis. The scientists will then gather more evidence. The scientists will accept the hypothesis if: (1) There is no significant evidence to refute the hypothes...
medmcqa
medmcqa_05_04237
Most common presenting feature of retinoblastoma-
[ "White reflex", "Proptosis", "Photophobia", "Pain" ]
A
Ans. is 'a' i.e., White reflex Retinoblastomao Retinoblastoma is the most common intraocular tumor in children. The tumor is confined to infancy and very young children (1-2 years). There is no sex predisposition. Retinoblastoma is unilateral in 70-75% of cases and bilateral in 25-30% of cases.Etiologyo Retinoblastoma ...
math_qa
mathqa_03_01903
in an election a candidate who gets 60 % of the votes is elected by a majority of 1040 votes . what is the total number of votes polled ?
[ "a", "b", "c", "d" ]
B
"let the total number of votes polled be x then , votes polled by other candidate = ( 100 - 60 ) % of x = 40 % of x 60 % of x - 40 % of x = 1040 20 x / 100 = 1040 x = 1040 * 100 / 20 = 5200 answer is b"
sciq
sciq_01_10290
Does deforestation increase or decrease carbon dioxide levels around the world?
[ "increase", "accelerate", "decrease", "eliminate" ]
A
Jami Dwyer. Deforestation creates significant increases in carbon dioxide levels around the world . Public Domain.
sciq
sciq_01_09688
In what group of animals several forms of asexual reproduction are found?
[ "arthropods", "insects", "invertebrates", "crustaceans" ]
C
sciq
sciq_01_04824
Triggering a blink when something touches the surface of the eye, the corneal reflex is what type of reflex?
[ "dendritic", "somatic", "sensory", "orgasmic" ]
B
connection is the basis of somatic reflexes. The corneal reflex is contraction of the orbicularis oculi muscle to blink the eyelid when something touches the surface of the eye. Stretch reflexes maintain a constant length of muscles by causing a contraction of a muscle to compensate for a stretch that can be sensed by ...
medmcqa
medmcqa_05_01304
Donepezil is used in the treatment of which of the following conditions -
[ "Schizophrenia", "Depression", "Anxiety", "Alzheimer dementia" ]
D
Ans. is 'd' i.e., Alzheimer disease o Donepezil is a cerebroactive drug. It is used in Alzheimer's disease (AD).
openbookqa
obqa_02_00350
What contains seeds
[ "human.", "whole pumpkin", "soda can", "leaf" ]
B
a pumpkin contains seeds
sciq
sciq_01_03762
What can be combined with an amine to form an amide?
[ "ketones", "carbon dioxide", "carboxylic acid", "acetic acid" ]
C
An amide can be formed by combining a carboxylic acid and an amine. Only primary and secondary amines can be used to form amides, since they have a hydrogen that can be replaced with the carbonyl carbon; tertiary amines will not form amides. The amide shown in the Figure above was formed from a carboxylic acid and a pr...
openbookqa
obqa_02_01028
An example of how melting is achieved is seen in
[ "cooking stew in a crockpot", "using an oven to heat a pizza", "using a stove to warm frozen vegetables", "using a hairdryer to turn ice to water" ]
D
melting means changing from a solid into a liquid by adding heat energy
sciq
sciq_01_00123
In a glass of sweet tea the sugar is known as the solute and the water is known as what?
[ "solvent", "solid", "pigment", "calcium" ]
A
If you’re like Tanya in this picture, you prefer your iced tea sweetened with sugar. Sweetened iced tea is a solution in which solid sugar (the solute) is dissolved in cold liquid tea, which is mostly water (the solvent). When you add sugar to tea, particles of water pull apart particles of sugar. The particles of suga...
sciq
sciq_01_10945
What are a group of protists whose monophyly is well supported by molecular systematics?
[ "euglenozoa", "alveolates", "sporozoans", "mycetozoa" ]
B
medmcqa
medmcqa_05_00595
Which of the following does not pass through normal kidneys?
[ "Albumin", "IgG", "Beta globulin", "Lysozyme" ]
A
Albumin is not excreted and beta globulin is excreted because circulating albumin is negatively charged.
openbookqa
obqa_02_00148
More carbon dioxide is in the air in the past decade than ever before, probably because
[ "more cattle produced", "more plant life", "human population increased", "less water area" ]
C
carbon dioxide concentrations in the air have increased over the last decade dramatically
openbookqa
obqa_02_04352
Which likely would suffer in the arctic?
[ "a polar bear", "a lion", "a penguin", "a walrus" ]
B
if a living thing becomes too cold then that living thing will die
medmcqa
medmcqa_05_00561
Preferred treatment of cubitus varus is -
[ "Medial closing wedge osteotomy", "Lateral closing wedge osteotomy", "Medial opening wedge osteotomy", "Lateral opening wedge osteotomy" ]
B
Answer- B. Lateral closing wedge osteotomyCubitus varus- lateral closing wedge osteotomy, medial opening wedge osteotomy.
medmcqa
medmcqa_05_02055
An 8-year-old child is brought in by her mother with complaints of crampy abdominal pain, nausea, and mild diarrhea for approximately 2 weeks. The day before this visit, she vomited up a cylindrical white worm 30 cm in length, which the mother preserved in a jar. Which of the following is the most likely means by which...
[ "Autoinfection", "Ingestion of cysts in contaminated water", "Ingestion of eggs from an infected pet", "Ingestion of eggs from human feces" ]
D
This is a case of Ascaris lumbricoides infection, the only helminth infection caused by a cylindrical white worm of this remarkably large size. It is acquired directly, with no intermediate host, from fecal contamination from other human beings, and the stage of the life cycle that is transmitted is the egg. Autoinfect...
openbookqa
obqa_02_04899
Breath includes which of the following?
[ "Energy", "Chemical", "Vapor", "Cells" ]
C
breath contains water vapor
ARC-Easy
arc_04_01718
When athletes begin to exercise, their heart rates and respiration rates increase. At what level of organization does the human body coordinate these functions?
[ "at the tissue level", "at the organ level", "at the system level", "at the cellular level" ]
C
null
sciq
sciq_01_09037
Which system of the body is responsible for bringing air into the body?
[ "digestive system", "excretory system", "vascular system", "respiratory system" ]
D
We breathe because we need oxygen. Breathing also releases carbon dioxide from our bodies into the air. The respiratory system is the body system that brings air containing oxygen into the body and releases carbon dioxide into the atmosphere. Recall that oxygen is needed to make ATP.
sciq
sciq_01_06338
When something loses electrons, it must also?
[ "slow down", "reduce protons", "gain electrons", "gain protons" ]
C
Solution The charges, as well as the atoms, must balance in reactions. The silver atom is being oxidized from the 0 oxidation state to the 1+ state. Whenever something loses electrons, something must also gain electrons (be reduced) to balance the equation. Oxygen is a good oxidizing agent for these reactions because i...
sciq
sciq_01_06157
What are the two types of properties that matter has?
[ "composition and weight", "size and shape", "physical and chemical", "nature and purpose" ]
C
Matter has both physical and chemical properties. Physical properties can be measured or observed without matter changing to a different substance.
medmcqa
medmcqa_05_03718
A case of A comes to the emergency. On examination there is evidence of head injury, BP is 90/60 mmHg, and pulse is 150/ min. Which of the following anaesthetic agent should be used for induction?
[ "Thiopentone", "Ketamine", "Halothane", "succinylcholine" ]
A
Anaesthetic agents which are indicated in a case of head injury are Thopentone (Lerebroprotective), Propofol, Etomsdate (Protection against circulatory depression) or Isoflurane. * Muscle relaxants which are useful includes Rocuronium/vecuronium, Pipecuronium * Ketamine, Succinylcholine, Halothane all increases ICT. Re...
sciq
sciq_01_00964
Corals build hard exoskeletons that grow to become what?
[ "fungi", "coral reefs", "algae", "stability reefs" ]
B
sciq
sciq_01_06208
What is a process that changes some chemical substances into other chemical substances?
[ "spontaneous mutation", "a chemical reaction", "cellular respiration", "a bio reaction" ]
B
A chemical reaction is a process that changes some chemical substances into other chemical substances. The substances that start a chemical reaction are called reactants . The substances that form as a result of a chemical reaction are called products . During the reaction, the reactants are used up to create the produ...
sciq
sciq_01_05360
How do dogs lose body heat?
[ "panting", "barking", "eating", "sweating" ]
A
One way mammals lose excess heat is by increasing blood flow to the skin. This warms the skin so heat can be given off to the environment. That’s why you may get flushed, or red in the face, when you exercise on a hot day. You are likely to sweat as well. Sweating also reduces body heat. Sweat wets the skin, and when i...
sciq
sciq_01_07152
The force of attraction or repulsion between charged particles is called what?
[ "cooling force", "magnetic force", "electric force", "power force" ]
C
When it comes to electric charges, opposites attract. In other words, positive and negative particles are attracted to each other. Like charges, on the other hand, repel each other, so two positive or two negative charges push apart from each other. The force of attraction or repulsion between charged particles is call...
sciq
sciq_01_10938
Diet correlates with the length of what organ system in vertebrates?
[ "digestive", "reproductive", "circulatory", "respiratory" ]
A
ARC-Easy
arc_04_00285
The distance from Earth to the Sun is about 150,000,000 km. What abbreviation do scientists use to describe this distance?
[ "meters per second (m/s)", "light-year (ly)", "astronomical unit (AU)", "electromagnetic unit (EMU)" ]
C
null
math_qa
mathqa_03_02782
the sum of squares of 3 numbers is 764 and sum of their products taken two at a time is 500 . what is their sum ?
[ "48", "42", "52", "32" ]
B
description : let the numbers be x , y , z . = > x 2 + y 2 + z 2 = 764 = > 2 ( xy + yz + xz ) = 2 * 500 = 1000 = > ( x + y + z ) 2 = ( x 2 + y 2 + z 2 ) + 2 ( xy + yz + xz ) = 1764 = > ( x + y + z ) = sqrt ( 1764 ) = 42 answer b
medmcqa
medmcqa_05_02882
Nerve supplying Gemellus inferior
[ "Nerve to Obturator internus", "Superior gluteal nerve", "Inferior gluteal nerve", "Nerve to Quadratus femoris" ]
D
Nerve to Obturator internus supplies obturator internus and Gemellus superior. Nerve to Quadratus femoris supplies Quadratus femoris and Gemellus inferior
ARC-Easy
arc_04_01451
A scientist plans a project to determine the effect of rain on the formation of caves. An area of rock has been chosen as the site for the investigation. How often should the scientist measure the changes in the rock?
[ "every day", "every week", "every month", "every year" ]
D
null
math_qa
mathqa_03_02153
a group of hikers is planning a trip that will take them up a mountain using one route and back down using another route . they plan to travel down the mountain at a rate of one and a half times the rate they will use on the way up , but the time each route will take is the same . if they will go up the mountain at a r...
[ "4", "6", "8", "12" ]
D
"d = s * t given condition is for up the mountain hikers takes 4 miles per day and total 2 days . . . miles = 8 miles . . . for down speed they take = 3 / 2 ( 4 ) = 6 miles per day and for the same 2 days . . . miles = 12 miles . . answer : option d is correct answer"
ARC-Easy
arc_04_00956
Burning coal and natural gas are ways to produce electricity. Both coal and natural gas are nonrenewable resources. Which is an example of producing electricity using a renewable source of energy?
[ "using food pieces to make compost", "gliding a boat through the water using sails", "putting an energy-saving lightbulb in a lamp", "heating a home with energy collected by solar panels" ]
D
null
medmcqa
medmcqa_05_00338
Investigation of choice for diagnosis of congenital hyperophic pylori stenosis:
[ "USG", "Barium meal", "Barium meal follow through", "CT scan with contrast" ]
A
Ans. USG
openbookqa
obqa_02_03919
The movement of lava might be compared to that of a
[ "sloth", "Cheetah", "Sail fish", "Spaceship" ]
A
lava is found above the ground
openbookqa
obqa_02_04368
if two equal forces in opposite directions act on an object then that object will stay where?
[ "360 degrees apart", "opposite", "split", "between them" ]
D
if two equal forces in opposite directions act on an object then that object will stay in the same place
medmcqa
medmcqa_05_03399
Best prognosis is seen in -
[ "Ca lip", "Ca tongue", "Ca palate", "Ca floor of mouth" ]
A
Carcinoma of oral cavity Most common type of Carcinoma of oral cavity is squamous cell carcinoma In the oral Cavity, tongue (30%) is the most common site followed by lip (17.4%) and the floor of mouth (16.4%) The mortality from squamous Carcinoma also varies by site in the mouth, with the lowest mortality from lip Ca...
sciq
sciq_01_07982
The heart contracts rhythmically to pump what to the lungs and the rest of the body?
[ "Bile", "Chyle", "blood", "Cerumen" ]
C
The heart contracts rhythmically to pump blood to the lungs and the rest of the body. Specialized cardiac muscle cells trigger the contractions.
sciq
sciq_01_09961
Most members of what mammalian order possess opposable thumbs?
[ "primates", "rodents", "amphibians", "marsupials" ]
A
Most primates have opposable thumbs. An opposable thumb can be brought into opposition with the other fingers of the same hand. This allows the hand to grasp and hold things.
medmcqa
medmcqa_05_03374
Vitamin A prophylaxis is given to children every: September 2007
[ "3 months", "6 months", "12 months", "18 months" ]
B
Ans. B: 6 months National programme for prevention of nutritional blindness focuses on Promoting consumption of vitamin A rich foods by pregnant and lactating women and by children under 5 years of age. Administration of massive doses of vitamin A up to 5 years. First dose of 100,000 IU with measles vaccination at 9 mo...
ARC-Easy
arc_04_01101
Elements in the same column of the Periodic Table of the Elements all
[ "have the same number of protons.", "share the same atomic structure.", "have similar physical characteristics.", "share the same number of neutrons." ]
C
null
ARC-Easy
arc_04_01168
Which inventor had the greatest impact on the development of artificial light?
[ "Charles Darwin", "Albert Einstein", "Thomas Edison", "Benjamin Franklin" ]
C
null
ARC-Challenge
arc_04_03046
A negative effect of the invention and use of paper is the
[ "increased use of glass bottles.", "increased number of trees cut down.", "decreased pollution in trash dumps.", "decreased amount of books to read." ]
B
null
sciq
sciq_01_09926
What is the logarithmic scale that measures the largest jolt of energy released by an earthquake called?
[ "tremor scale", "richter scale", "Geiger counter", "Shake scale" ]
B
The Richter scale is a logarithmic scale that measures the largest jolt of energy released by an earthquake.
math_qa
mathqa_03_01674
a train running at the speed of 54 km / hr crosses a pole in 9 seconds . what is the length of the train ?
[ "135", "278", "255", "150" ]
A
"speed = ( 54 * 5 / 18 ) m / sec = ( 15 ) m / sec length of the train = ( speed x time ) = ( 15 * 9 ) m = 135 m . answer : a"
sciq
sciq_01_01175
Worms use a hydrostatic type of what anatomical structure to move through their environment?
[ "skeleton", "tail", "gastrointestinal system", "head" ]
A
sciq
sciq_01_07677
A protective coating of zinc to prevent corrosion is applied to steel and other metals labeled what?
[ "battered", "polarized", "corroded", "galvanized" ]
D
Zinc is a silvery metal that quickly tarnishes to a blue-gray appearance. This change in color is due to an adherent coating of a basic carbonate, Zn2(OH)2CO3, which passivates the metal to inhibit further corrosion. Dry cell and alkaline batteries contain a zinc anode. Brass (Cu and Zn) and some bronze (Cu, Sn, and so...
sciq
sciq_01_01838
What is an animal that picks up pollen on its body and carries it to another flower called?
[ "lizard", "rodent", "pollinator", "fungi" ]
C
The showy petals of flowers evolved to help attract pollinators. Wind-blown pollen might land just anywhere and be wasted. A pollinator is an animal that picks up pollen on its body and carries it directly to another flower of the same species. This helps ensure that pollination occurs. Pollinators are usually small an...
ARC-Easy
arc_04_01592
Which of these is a way the people of Virginia can help restore a natural ecosystem?
[ "Burn their trash", "Plant native plants", "Feed leftover meals to deer", "Drain automobile oil into the grass" ]
B
null
sciq
sciq_01_09213
Spores are the basic reproductive units of what organism?
[ "yeast", "fungi", "tropical plants", "mushrooms" ]
B
Specialized structures for reproduction: One example is a fruiting body. Just like a fruit is involved in the reproduction of a fruiting plant, a fruiting body is involved in the reproduction of a fungus. A mushroom is a fruiting body , which is the part of the fungus that produces spores ( Figure below ). The spores a...
openbookqa
obqa_02_03639
If your were to sit still and stare at the sky for one of the earth's rotations, you will have wasted
[ "half your existence", "1,440 minutes", "your family's week", "2 days" ]
B
a Rotation of the Earth on itself takes one day
openbookqa
obqa_02_01040
Pulse rate increases
[ "the quicker the pace of a runner", "when a person falls asleep", "as a runner slows down", "while holding yoga poses" ]
A
as energy required for an activity increases , pulse will increase
openbookqa
obqa_02_03604
A bird of prey is hunting a scaly meal. How might this creature avoid being spotted?
[ "Lure the hunter into a trap and eat it first", "Close its eyes and hope for the best", "Altering its hues to look like the leaves", "Flee at breakneck speeds" ]
C
hawks eat lizards
math_qa
mathqa_03_01959
on a scale of map , 0.4 cm represents 5.3 km . if the distance between the points on the map is 64 cm , the actual distance between these points is :
[ "9 km", "72.5 km", "190.75 km", "848 km" ]
D
explanation : let the actual distance be x km . then , more distance on the map , more is the actual distance ( direct proportion ) = > 0.4 : 64 : : 5.3 : x = > 0.4 x = 64 x 5.3 = > x = 64 x 5.3 / 0.4 = > x = 848 answer : d
sciq
sciq_01_00993
What type of energy is clean and does not release greenhouse gases?
[ "geothermal energy", "natural gas", "lithosphere energy", "coal" ]
A
Geothermal energy is clean and does not release greenhouse gases.
medmcqa
medmcqa_05_01111
Rugger jersey spine in CRF is due to -
[ "Osteomalacia", "Trauma", "Hyperparathyroidism", "Aluminium osteodystrophy" ]
C
A common finding in secondary hyperthyroidism associated with renal osteodystrophy is the osteosclerosis resulting in typical appearance of the vertebral bodies as seen in the rugger - jersy spine.