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medmcqa
medmcqa_05_04192
Which of the following causes would you consider for a suspected case of Delirium Tremens, under investigation?
[ "Chronic alcoholism", "Alcohol withdrawal", "Cocaine abuse", "Cocaine withdrawal" ]
B
Delirium tremens (DTs) is the most severe form of ethanol withdrawal. it is manifested by altered mental status (global confusion) and sympathetic overdrive (autonomic hyperactivity), which can progress to cardiovascular collapse.
sciq
sciq_01_09609
What is the only planet that rotates clockwise as viewed from its north pole?
[ "mars", "uranus", "venus", "earth" ]
C
Venus is the only planet that rotates clockwise as viewed from its North Pole. All of the other planets rotate counterclockwise. Venus turns slowly, making only one turn every 243 days. This is longer than a year on Venus! It takes Venus only 225 days to orbit the Sun.
sciq
sciq_01_11513
What is the measure of how closely molecules are packed together?
[ "volume", "density", "frequency", "length" ]
B
Density is mass per unit volume. Density is a measure of how closely molecules are packed together. The closer together they are, the greater the density. Since air is a gas, the molecules can pack tightly or spread out.
sciq
sciq_01_05438
Bile salts produced by the liver assist in breaking apart what kind of fats?
[ "carbohydrates", "soluble", "dietary", "Sugar" ]
C
Many other salts are important in the body. For example, bile salts produced by the liver help break apart dietary fats, and calcium phosphate salts form the mineral portion of teeth and bones.
math_qa
mathqa_03_00833
given f ( x ) = 3 x – 5 , for what value of x does 2 * [ f ( x ) ] – 16 = f ( x – 6 ) ?
[ "1", "4", "6", "7" ]
A
"2 ( 3 x - 5 ) - 16 = 3 ( x - 6 ) - 5 3 x = 3 x = 1 the answer is a ."
ARC-Easy
arc_04_00417
A student is growing some plants for an experiment. She notices small white spots on the leaves. Which tool should she use to get a better look at the spots?
[ "thermometer", "hand lens", "graduated cylinder", "balance" ]
B
null
sciq
sciq_01_10866
The most magnetic material in nature is what?
[ "magnetite", "molecules", "crystals", "gold" ]
A
Some materials are natural permanent magnets. The most magnetic material in nature is the mineral magnetite.
medmcqa
medmcqa_05_04009
Which is the most common second malignancy in survivors of retinoblastoma?
[ "Optic glioma", "Osteosarcoma", "Thyroid cancer", "Nasopharyngeal carcinoma" ]
B
Osteosacrcomas are the most common second malignancy in survivors of retinoblastoma. Ref: Cancer in Children and Adolescents By William Larkin Carroll, Page 384; Manual of Pediatric Hematology and Oncology By Philip Lanzkowsky, 5th Edition, Page 947
sciq
sciq_01_02266
Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their ratios of what?
[ "mass-to-charge", "ph to charge", "volume to charge", "mass to volume" ]
A
Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their mass-to-charge ratios. In medicine, mass spectrometers are used to measure the concentration of isotopes used as tracers. Usually, biological molecules such as proteins are...
medmcqa
medmcqa_05_03832
Enterovirus 72 is:
[ "Hepatitis A", "Hepatitis B", "Hepatitis C", "Hepatitis E" ]
A
Hepatitis A virus was originally classified as Enterovirus type 72 but is now assigned to a separate genus Hepatovirus in the family Picornaviridae. Picornaviruses are Icosahedral, 28-30 nm (small size), nonenveloped single stranded RNA viruses; Linear positive sense RNA genome. Hepatitis B : belongs to Hepadnaviridae ...
openbookqa
obqa_02_02478
A wet globe that is enormous in mass is likely to have a stone
[ "layer", "sun", "brain", "labyrinth" ]
A
Earth 's surface is made of rock
sciq
sciq_01_04555
When a metal is oxidized and a nonmetal is reduced in a redox reaction, what is the resulting compound called?
[ "magnetic compound", "alloy", "ionic compound", "soluble compound" ]
C
There are many other examples of redox reactions in which two neutral elements combine to make a compound. These often take the form of a metal being oxidized and a nonmetal being reduced, resulting in an ionic compound. Two nonmetallic elements can also undergo a redox reaction of this type, in which the less electron...
medmcqa
medmcqa_05_04087
Life time risk of TB in HIV Patients -
[ "20%", "50%", "10%", "5%" ]
A
Tuberculosis Preventing exposure to tuberculosis is impoant when there is an infectious case in the household, in clinics and in hospitals.Adequate ventilation, masks and safe coughing procedures reduce the risk of exposure. For HIV-uninfected individuals with latent TB infection (LTBI), the lifetime risk of developing...
openbookqa
obqa_02_03209
What births live young?
[ "a feathered animal with a beak", "a tail having tree dweller", "a modern sport utility vehicle", "a planet close to the sun" ]
B
a monkey births live young
sciq
sciq_01_06945
What will happen to sea levels due to increased global temperatures?
[ "Drop", "reverse", "surge", "rise" ]
D
This increase in global temperature will cause the sea level to rise. It is also expected to produce an increase in extreme weather events and change the amount of precipitation. Global warming may also cause food shortages and species extinction.
math_qa
mathqa_03_02051
find the cube root of 185193 .
[ "33", "57", "99", "17" ]
B
"observe unit digit here is 3 so unit digit of the answer is 7 . now omit 193 . now find after which perfect cube 193 lies . it is 125 . so our tenth place is 5 . so answer is 57 . answer : b"
math_qa
mathqa_03_02623
10 play kabadi , 25 play kho kho only , 5 play both gmaes . then how many in total ?
[ "30", "35", "38", "40" ]
B
"10 play kabadi = > n ( a ) = 10 , 5 play both gmaes . = > n ( anb ) = 5 25 play kho kho only , = > n ( b ) = n ( b only ) + n ( anb ) = 25 + 5 = 30 total = > n ( aub ) = n ( a ) + n ( b ) - n ( anb ) = 10 + 30 - 5 = 35 answer : b"
math_qa
mathqa_03_02062
1.20 can be expressed in terms of percentage as
[ "120 %", "0.120 %", "1.20 %", "0.209 %" ]
A
"explanation : while calculation in terms of percentage we need to multiply by 100 , so 1.20 * 100 = 120 answer : option a"
openbookqa
obqa_02_03982
Feces on the ground is an indicator of a nearby
[ "organic being", "fish", "plush animal", "deceased animal" ]
A
an organism is a source of organic material
medmcqa
medmcqa_05_01600
Onion peeling of renal vessels is seen in -
[ "Benign hypertension", "Malignant hypertension", "Diabetic nephropathy", "SLE" ]
B
Ans. is 'b' i.e., Malignant hypertension o There is concentric hyperplastic proliferation of the smooth muscles together with fine concentric layering of collagen to form a hyperplastic arteriolitis (Onion skin lesion),o Malignant nephrosclerosis is the form of renal disease associated with malignant or accelerated pha...
sciq
sciq_01_06645
What is lava called before it reaches the surface of the earth?
[ "rock", "magma", "crust", "pyrite" ]
B
Minerals form as magma or lava cools.
sciq
sciq_01_08700
What do some animals use to get a feel for their environment?
[ "mechanoreceptors", "fibroblasts", "nociceptors", "neuroreceptors" ]
A
sciq
sciq_01_07366
Earthworms are important deposit feeders that help form and enrich what material?
[ "shale", "soil", "wood", "coal" ]
B
Earthworms are important deposit feeders that help form and enrich soil.
sciq
sciq_01_06402
What term is used to describe the full range of electromagnetic waves?
[ "mechanical spectrum", "electromagnetic spectrum", "electromagnetic scale", "electromagnetic series" ]
B
Electromagnetic waves vary in their wavelength, frequency, and energy. The full range of electromagnetic waves makes up the electromagnetic spectrum.
medmcqa
medmcqa_05_00333
Hangover following alcohol consumption can be treated with -
[ "Pyridoxine", "Thiamine", "Riboflavin", "Niacin" ]
B
Ans. is 4b' i.e., Thiamine o Thiamine helps prevent the buildup of glutarate in the brain, which may be associated with part of the headache associated with hangover.
sciq
sciq_01_01664
An antigen is a macromolecule that reacts with components of what?
[ "circulatory system", "immune system", "digestion system", "pulmonary system" ]
B
Figure 42.10 An antigen is a macromolecule that reacts with components of the immune system. A given antigen may contain several motifs that are recognized by immune cells. Each motif is an epitope. In this figure, the entire structure is an antigen, and the orange, salmon and green components projecting from it repres...
medmcqa
medmcqa_05_04618
Molybdenum is a constituent of:
[ "Xanthine oxidase", "Cytochrome oxidase", "Phosphofructokinase", "Carbonic anhydrase" ]
A
Molybdenum containing enzymes include aldehyde oxidase, sulfite oxidase and xanthine oxidase.
math_qa
mathqa_03_00033
find 62976 ÷ ? = 123
[ "412", "502", "512", "522" ]
C
"answer let 62976 / n = 123 then n = 62976 / 123 = 512 . option : c"
math_qa
mathqa_03_04692
there is a clock which shows false timing ie it shows 10 minutes less for each 1 hour . . . . if the clock shows 12 noon now how many minutes will be lost when it shows 3 pm ?
[ "16 minutes", "26 minutes", "36 minutes", "46 minutes" ]
C
for 1 hour , 10 minutes is slower , then for 06 miuntes - 1 minutes is slower 30 minutes - 5 minutes actual time false time 12 12 01 pm 12.50 pm ( 10 minutes slower ) 02 pm 01.40 pm ( 12.50 + 60 min - 10 minutes slower ) 03 pm 02.30 pm ( 01.40 + 60 min - 10 minutes slower ) 03.36 pm 03.00 pm ( 02.30 + 36 min - 6 minute...
sciq
sciq_01_06429
What process provides over 99% of the energy supply for life on earth?
[ "photosynthesis", "Carbon", "gases", "nutrients" ]
A
Photosynthesis provides over 99% of the energy supply for life on Earth. A much smaller group of autotrophs - mostly bacteria in dark or low-oxygen environments - produce food using the chemical energy stored in inorganic molecules such as hydrogen sulfide, ammonia, or methane. While photosynthesis transforms light ene...
sciq
sciq_01_06758
The most common carbon atoms have six protons and six neutrons in their what?
[ "membrane", "neuron", "nuclei", "ribosomes" ]
C
E XA MP L E 1 1. The most common carbon atoms have six protons and six neutrons in their nuclei. What are the atomic number and the mass number of these carbon atoms?.
math_qa
mathqa_03_02202
a bakery has 6 employees . it pays annual salaries of $ 15,000 to each of 2 employees , $ 17,000 to 1 employee , and $ 18,000 to each of the remaining 3 employees . which number is closest to the average ( arithmetic mean ) annual salary of these employees ?
[ "$ 16,200", "$ 16,500", "$ 16,800", "$ 17,000" ]
C
"average = 2 ( 15000 ) + ( 17000 ) + 3 ( 18000 ) / 6 = $ 16,833 the answer is c ."
openbookqa
obqa_02_02339
A minuscule thing could be seen easily with help from
[ "a scope", "a car", "a blind", "a mirror" ]
A
microscope is used to see small things by making them appear bigger
ARC-Easy
arc_04_00725
Plankton are tiny ocean organisms. The role of one type of plankton is to use the energy from the Sun to produce food that other animals eat. Which organism has the same role in the ocean as this type of plankton?
[ "seaweed", "turtle", "dolphin", "crab" ]
A
null
math_qa
mathqa_03_00852
three numbers are in the ratio of 2 : 3 : 4 and their l . c . m . is 264 . what is their h . c . f . ?
[ "18", "22", "24", "28" ]
B
"let the numbers be 2 x , 3 x , and 4 x . lcm of 2 x , 3 x and 4 x is 12 x . 12 x = 264 x = 22 hcf of 2 x , 3 x and 4 x = x = 22 the answer is b ."
medmcqa
medmcqa_05_02453
Most impoant factor for development of diabetic retinopathy is
[ "Duration of diabetes", "Level of diabetes", "Type of diabetes", "co morbid conditions like hypeension & hyperlipidemia" ]
A
Duration of diabetes is most impoant factor for development of diabetic retinopathy. Other Risk Factors: Duration of DM Hyperlipidemia Nephropathy Pregnancy Hypeension
math_qa
mathqa_03_02962
convert the 9 / 36 m / s into kilometers per hour ?
[ "0.9 kmph", "9.9 kmph", "1.3 kmph", "1.2 kmph" ]
A
"9 / 36 m / s = 9 / 36 * 18 / 5 = 9 / 10 = 0.9 kmph . answer : a"
sciq
sciq_01_11190
During which phase is the moon more than half lit but not full?
[ "new", "gibbous phase", "crescent", "waxing" ]
B
Before and after the quarter-moon phases are the gibbous and crescent phases. During the crescent moon phase, the Moon is less than half lit. It is seen as only a sliver or crescent shape. During the gibbous moon phase, the Moon is more than half lit. It is not full. The Moon undergoes a complete cycle of phases about ...
sciq
sciq_01_10444
The first photosynthetic organisms were not plants, but types of what that lived in the water?
[ "algae", "fungi", "bacteria", "pathogens" ]
C
The first photosynthetic organisms were bacteria that lived in the water. So, where did plants come from? Evidence shows that plants evolved from freshwater green algae, a protist ( Figure below ). The similarities between green algae and plants is one piece of evidence. They both have cellulose in their cell walls, an...
medmcqa
medmcqa_05_01406
Which plasma protein is necessary for adhesion of platelets to subendothelialfibres?
[ "Glycoprotein IIb", "Von Willebrand factor", "Platelet factor 3", "Factor X" ]
B
Ans. (b) Von Willebrand factor(Ref: Robbins 9th/pg 661)Von Willebrand factor is necessary for adhesion of platelets to subendothelial fibres.
openbookqa
obqa_02_02594
some countries can be in bed and other are in the middle of the day enjoying the outdoors, why?
[ "animals", "rotation of sun", "planet rotation", "ocean tides" ]
C
if it is night then the sun has set
medmcqa
medmcqa_05_03093
Which of the following is octapeptide
[ "Glutathione", "Angiotensin I", "Angiotensin II", "Oxytocin" ]
C
Glutathione is tripeptide Angiotensin I is decapeptide Oxytocin and Vasopressin are nonapeptide.
sciq
sciq_01_06076
What is the term for rain consisting of water with a ph below 5?
[ "carbon rain", "produce rain", "Hot Rain", "acid rain" ]
D
Acid rain is rain that has a pH less than 5 ( Figure below ). Acidity is measured on the pH scale . Lower numbers are more acidic, and higher numbers are less acidic (also called more alkaline ). An acid has a pH of less than 7. The pH of normal rain is 5.6. It’s slightly acidic because carbon dioxide in the air dissol...
openbookqa
obqa_02_01994
A deer is killed and the body is broken down by worms and bacteria. The deer's body is
[ "bigger", "has less mass", "invisible", "the same shape" ]
B
breaking down an object changes that object 's shape and mass
sciq
sciq_01_03422
Where do most amphibians live, salt water or fresh water?
[ "deserts", "saltwater", "aquariums", "fresh water" ]
D
Most amphibians live in fresh water, not salt water. Their habitats can include areas close to springs, streams, rivers, lakes, swamps and ponds. They can be found in moist areas in forests, meadows and marshes. Amphibians can be found almost anywhere there is a source of fresh water. Although there are no true saltwat...
sciq
sciq_01_01851
What does the clitellum secrete, while the sperm received are stored temporarily?
[ "amoeba of mucus", "cocoon of mucus", "pathogen of mucus", "discharge of mucus" ]
B
medmcqa
medmcqa_05_02814
Co factor of glutathione peroxidase -
[ "Selenium", "Magnesium", "Manganese", "Zinc" ]
A
Ans. is 'a' i.e., Selenium* Keshan's disease is a form of cardiomyopathy and is characterized by multifocal myocardial necrosis, cardiac arrhythmias and cardiac enlargement.* It is prevalent in the Keshan province of China, soil of which is deficient in Selenium.* Selenium deficiency in the soil is found to cause an in...
openbookqa
obqa_02_02013
What is used to catch prey by some birds?
[ "a bill", "fire", "nets", "cups" ]
A
a beak is used for catching prey by some birds
ARC-Easy
arc_04_01206
When compared to current average conditions, which term would best describe conditions in Earth's lower atmosphere if greenhouse gases were absent?
[ "denser", "cooler", "wetter", "cloudier" ]
B
null
openbookqa
obqa_02_00579
what is a mammal's parenting behavior?
[ "they give nutrition to their young", "they lack care for their young", "mammals eat their young", "mammals have zero offspring" ]
A
a mammal usually nurses its offspring
openbookqa
obqa_02_00775
Humans grow thinner when they
[ "lack food", "eat too much.", "overeat", "eat food" ]
A
lack of food causes starvation
sciq
sciq_01_03322
Which body part is unsuitable for animals living on land?
[ "lungs", "hands", "feet", "gills" ]
D
ARC-Easy
arc_04_00087
Some areas of the world are experiencing more desert-like conditions. This change most favors survival of species with the ability to do which of the following?
[ "consume large amounts of food", "become dormant for long periods", "sense infrared and ultraviolet light", "transpire water through the skin to the atmosphere" ]
B
null
sciq
sciq_01_05679
A potential cause of extinction, competition between different species is called what?
[ "interspecific competition", "parasitism", "intraspecific competition", "mutualism" ]
A
Competition between different species is called interspecific competition. It might lead to the less well-adapted species going extinct. Or it might lead to one or both species evolving specialized adaptations. For example, competing species might evolve adaptations that allow them to use different food sources. You ca...
medmcqa
medmcqa_05_00090
Tumor marker of Dysgerminoma
[ "a-fetoprotein", "hCG", "CA-125", "Lactate dehydrogenase" ]
D
Dysgerminoma is the most common malignant germ cell tumour, accounting for about 30% to 40% of all ovarian cancers of germ cell origin. Placental alkaline phosphatase (PLAP) and lactate dehydrogenase (LDH) are produced by up to 95% of dysgerminomas, and serial measurements of LDH may be useful for monitoring the diseas...
sciq
sciq_01_00875
What gas is released into the atmosphere when fossil fuels are burned?
[ "glucose", "co2", "hydrogen", "helium" ]
B
Carbon dioxide levels in the atmosphere are increasing. Fossil fuel burning is increasing. The rise in fossil fuel burning is increasing the CO 2 in the atmosphere.
math_qa
mathqa_03_03472
in a kilometer race , a beats b by 54 meters or 12 seconds . what time does a take to complete the race ?
[ "212", "190", "277", "181" ]
A
"time taken by b run 1000 meters = ( 1000 * 12 ) / 54 = 222 sec . time taken by a = 224 - 12 = 212 sec . answer : a"
openbookqa
obqa_02_01868
What could be used as a conductor?
[ "a cat", "A penny", "a cloud", "wood" ]
B
sending electricity through a conductor causes electric current to flow through that conductor
sciq
sciq_01_00405
The body is made up of how many types of tissue?
[ "five", "six", "seven", "four" ]
D
As for all animals, your body is made of four types of tissue: epidermal, muscle, nerve, and connective tissues. Plants, too, are built of tissues, but not surprisingly, their very different lifestyles derive from different kinds of tissues. All three types of plant cells are found in most plant tissues. Three major ty...
medmcqa
medmcqa_05_04424
Prophylactic antibiotics are most effective during
[ "Decisive period", "Infection period", "Latent period", "Golden period" ]
A
In the first 4 hours, after a breach in an epithelial surface and underlying connective tissues, there is delay in the mobilisation of host defences. This period is called 'decisive period' and during this period, bacterial colonisation and established infection can begin. It is logical that prophylactic antibiotics wi...
medmcqa
medmcqa_05_02504
Superior oblique is supplied by:
[ "Upper branch of 3rd N", "Lower branch of 3rd N", "Trochlear", "Abducens" ]
C
C i.e. Trocheal nerve
ARC-Easy
arc_04_01637
Falling and rising air and water molecules inside of clouds are believed to be factors in the formation of lightning. Which kind of energy transfer is taking place to cause this weather phenomenon?
[ "electrical to thermal", "thermal to mechanical", "chemical to mechanical", "mechanical to electrical" ]
D
null
math_qa
mathqa_03_02471
what is the compound interest on rs : 30,000 for 4 months at the rate of 5 % per annum
[ "501.13", "502.13", "503.13", "504.13" ]
C
it is monthly compound rate = 5 / 12 % per month 30000 * ( 1 + 5 / 1200 ) ^ 4 - 30000 = 503.13 answer : c
sciq
sciq_01_07306
What type of bacteria stains red?
[ "gram - such bacteria", "calcium - negative bacteria", "gram-negative bacteria", "kilogram-negative bacteria" ]
C
Bacteria that stain red are called gram-negative bacteria. They have a thin cell wall with an outer membrane.
sciq
sciq_01_06821
Where are the two tonsils located?
[ "throat", "nose", "tooth", "sinus" ]
A
The two tonsils are located on either side of the throat. They trap pathogens that enter the body through the mouth or nose.
sciq
sciq_01_10434
Insects can have specialized mouthparts, such as a proboscis, to siphon the nectar from what?
[ "stems", "fruits", "shrubs", "flowers" ]
D
Insects can have specialized mouthparts, such as a proboscis, to siphon the nectar from a flower.
sciq
sciq_01_06558
What is corrosive mixture is formulated by the combination of water, air and sulfur?
[ "nitric acid", "sulfuric acid", "hydrochloric acid", "sulfuric water" ]
B
Surface mining exposes minerals that were underground to air and water at the surface. These minerals contain the chemical element sulfur. Sulfur mixes with air and water to make sulfuric acid. This acid is a highly corrosive chemical. Sulfuric acid gets into nearby streams and can kill fish, plants, and animals. Surfa...
sciq
sciq_01_10875
Neurologists are physicians who specialize in disorders of what system?
[ "musculoskeletal system", "digestive system", "circulatory system", "nervous system" ]
D
Neurologist Neurologists are physicians who specialize in disorders of the nervous system. They diagnose and treat disorders such as epilepsy, stroke, dementia, nervous system injuries, Parkinson’s disease, sleep disorders, and multiple sclerosis. Neurologists are medical doctors who have attended college, medical scho...
math_qa
mathqa_03_04473
find out the square of a number which when doubled exceeds its quarter by 7 ?
[ "16", "11", "31", "29" ]
A
"a 16 explanation : let the number be p , then the square will be p ^ 2 according to question : 2 p = ( p / 4 ) + 7 = > 8 p = p + 28 = > p = 4 p ^ 2 = 4 ^ 2 = 16 ."
sciq
sciq_01_03189
What do omnivores eat?
[ "only plants", "only animals", "only seafood", "plants & animals" ]
D
Omnivores are heterotrophs that consume both plants and animals. They include crows and human beings. The grizzly bears pictured in Figure below are also omnivores.
medmcqa
medmcqa_05_04675
M.C. psychological features of AIDS is
[ "Mania", "Depression", "Suicidal Tendency", "Violence" ]
B
B i.e. Depression Depression is most common psychological feature in: AIDSQ Post paumQ/ Post myocardial infarctionQ Post surgery Myxedema OCN leads to secondary depressionQ Pseudo dementia & Nihilistic delusions are seen in depressionQ.
medmcqa
medmcqa_05_02023
Wheal and flare reaction is: September 2005
[ "Type I hypersensitivity", "Type II hypersensitivity", "Type III hypersensitivity", "Type IV hypersensitivity" ]
A
Ans. A: Type I hypersensitivity
sciq
sciq_01_05156
What model postulates that electrons orbit the nucleus at fixed energy levels?
[ "atomic model", "Newton's model", "coreolis", "bohr" ]
D
The Bohr model postulates that electrons orbit the nucleus at fixed energy levels.
sciq
sciq_01_11526
What is the length of the route between two points?
[ "speed", "velocity", "distance", "direction" ]
C
Distance is the length of the route between two points. The distance of a race, for example, is the length of the track between the starting and finishing lines. In a 100-meter sprint, that distance is 100 meters.
math_qa
mathqa_03_00706
find compound interest on $ 16000 at 15 % per annum for 2 years 4 months , compounded annually .
[ "6109", "6209", "6218", "6107" ]
C
"time = 2 years 4 months = 2 ( 4 / 12 ) years = 2 ( 1 / 3 ) years . amount = $ [ 16000 x ( 1 + ­ ( 15 / 100 ) ) 2 x ( 1 + ( ( 1 / 3 ) * 15 ) / 100 ) ] = $ [ 16000 * ( 23 / 20 ) * ( 23 / 20 ) * ( 21 / 20 ) ] = $ 22218 . : . c . i . = rs . ( 22218 - 16000 ) = $ 6218 answer c ."
sciq
sciq_01_07632
What are the strongest chemical bonds?
[ "mutual and stock bonds", "curvature and ionic bonds", "covalent and ionic bonds", "weak and ionic bonds" ]
C
sciq
sciq_01_06935
What celestial body in the solar system makes up most of its total mass?
[ "earth", "Jupiter", "sun", "Andromeda" ]
C
The Sun makes up almost all of the mass of the solar system.
math_qa
mathqa_03_00116
ashis ' s height is 25 % more than babji , by how much percent babji ' s height is less than ashis .
[ "30 %", "25 %", "75 %", "20 %" ]
D
explanation : solution : babji is less than ashis by ( 25 / ( 100 + 25 ) * 100 ) % = 20 % answer : d
ARC-Easy
arc_04_01351
Stacey picks apples and puts them in a basket. When she puts her basket on a scale, the scale reads two kilograms (kg). What property is Stacey measuring?
[ "height", "weight", "temperature", "volume" ]
B
null
ARC-Easy
arc_04_01158
Paula determines a property of a marble using a balance and a graduated cylinder. What property is Paula most likely determining by using both tools?
[ "density", "length", "mass", "volume" ]
A
null
math_qa
mathqa_03_03091
a sum fetched a total simple interest of rs . 4016.25 at the rate of 1 % p . a . in 3 years . what is the sum ?
[ "122762", "132877", "122882", "133875" ]
D
"principal = ( 100 * 4016.25 ) / ( 1 * 3 ) = rs . 133875 . answer : d"
math_qa
mathqa_03_02218
a certain protective additive increases from 45 days to 60 days the time between required maintenance checks on an industrial vehicle . by what percent is the time between maintenance checks increased by using the additive ?
[ "25 %", "33 1 / 3 %", "50 %", "66 2 / 3 %" ]
B
"general formula for percent increase or decrease , ( percent change ) : percent = change / original ∗ 100 so , the time between maintenance checks increased by 60 − 45 / 45 ∗ 100 = 33 1 / 3 answer : b ."
sciq
sciq_01_10857
What is the term for anything that can cause cancer?
[ "carcinogen", "chemical", "contaminate", "contamination" ]
A
A carcinogen is anything that can cause cancer. Cancer is a disease in which cells divide out of control. Most carcinogens cause cancer by producing mutations in DNA.
openbookqa
obqa_02_02121
Which of the following would be insulated
[ "a piece of paper", "a log of wood", "a beehive covered in wax", "a statically charged shirt" ]
C
wax is an electrical energy insulator
sciq
sciq_01_11068
What did volcanic gases help to form on earth?
[ "water", "rocks", "plants", "atmosphere" ]
D
When Earth first formed, it was a fiery hot, barren ball. It had no oceans or atmosphere. Rivers of melted rock flowed over its surface. Gradually, the planet cooled and formed a solid crust. Gases from volcanoes formed an atmosphere, although it contained only a trace of oxygen. As the planet continued to cool, clouds...
sciq
sciq_01_07828
Tropical rainforest, temperate grassland, and tundra are examples of what type of biomes?
[ "horizontal", "terrestrial", "oceanic", "atmospheric" ]
B
Terrestrial biomes include tropical rainforest, temperate grassland, and tundra.
sciq
sciq_01_07398
Warming conditions and, perhaps, human activities contributed to what fate of many organisms of the pleistocene era?
[ "evolution", "overpopulation", "accumulation", "extinction" ]
D
Many of the organisms that made up the Pleistocene megafauna went extinct as conditions warmed. Some may have been driven to extinction by human activities.
openbookqa
obqa_02_04728
Which is an example of solid matter
[ "an egg in a carton", "molten copper in a vat", "water in a glass", "mercury in a thermometer" ]
A
Matter in the solid phase has definite shape
sciq
sciq_01_09304
What basic plant structures generally have large surface areas and high surface-to-volume ratios?
[ "flowers", "roots", "stems", "leaves" ]
D
sciq
sciq_01_05532
What type of seeds come from plants that were traditionally grown in human populations, as opposed to the seeds used for large-scale agricultural production?
[ "modified seeds", "original seeds", "old-fashioned seeds", "heirloom seeds" ]
D
larger cities and economic growth therein leads to the construction of dams, the consequent flooding of ecosystems, and increased emissions of pollutants. Other threats to tropical forests come from poachers, who log trees for their precious wood. Ebony and Brazilian rosewood, both on the endangered list, are examples ...
sciq
sciq_01_02862
Weight refers to what force acting on a mass?
[ "gravitational", "solar", "electronic", "magnetic" ]
A
The terms mass and weight, while often used interchangeably, are technically different terms. Mass is the quantity of inertia possessed by an object. Weight refers to the gravitational force acting on a mass, as measured on a scale. On the surface of the earth, the numerical values of mass and the corresponding force o...
ARC-Easy
arc_04_00107
Which statement best identifies a basic need of all animals?
[ "They need to eat.", "They need to hide.", "They need to jump.", "They need to smell." ]
A
null
math_qa
mathqa_03_03704
a department store perceived a run on a lower priced garment and raised the price by 20 % to keep stock available until another shipment arrived . customers fumed and the department store manager allowed them to purchase the garments at 80 % of the new price to save face . what was the difference in the new retail pric...
[ "4.0 %", "5.0 %", "6.0 %", "7.0 %" ]
A
quantity x rate = price 1 x 1 = 1 0.8 x 1.20 = 0.960 decrease in price = ( 0.040 / 1 ) ã — 100 = 4.0 % answer = option a
openbookqa
obqa_02_04034
When a varmint eats a pear and discards the seeds what will develop
[ "a tree", "flower", "debt", "an ant mound" ]
A
An example of seed dispersal is animals eating seeds
openbookqa
obqa_02_02810
Classes and categories are both part of
[ "distraction", "confusion", "control", "designating" ]
D
classifying is when one sorts something by type
ARC-Easy
arc_04_00352
Animals that eat both plant matter and meat are referred to as
[ "decomposers.", "scavengers.", "herbivores.", "omnivores." ]
D
null
math_qa
mathqa_03_00289
the average of 20 results is 65 and the average of other 65 results is 20 . what is the average of all the results ?
[ "30", "25", "48", "50" ]
A
"answer sum of 85 result = sum of 20 result + sum of 65 result . = 20 x 65 + 65 x 20 = 2600 correct option : a"
ARC-Challenge
arc_04_02195
Which statement is an observation?
[ "The plant has flowers.", "The plant is very pretty.", "The plant will grow berries.", "The plant might be poisonous." ]
A
null
sciq
sciq_01_05552
Pressure relationships inspiration (or inhalation) and expiration (or exhalation) are dependent on the differences in pressure between the atmosphere and these?
[ "salts", "bones", "enzymes", "lungs" ]
D
Pressure Relationships Inspiration (or inhalation) and expiration (or exhalation) are dependent on the differences in pressure between the atmosphere and the lungs. In a gas, pressure is a force created by the movement of gas molecules that are confined. For example, a certain number of gas molecules in a two-liter con...
sciq
sciq_01_09362
Proto-oncogenes are positive cell-cycle regulators but when mutated, they can become what?
[ "oncogenes and cause cancer", "cultigens and cause cancer", "bacteria and cause cancer", "microbes and cause cancer" ]
A
Watch this animation (http://openstaxcollege. org/l/p53_cancer) to learn more about the use of p53 in fighting cancer. Proto-oncogenes are positive cell-cycle regulators. When mutated, proto-oncogenes can become oncogenes and cause cancer. Overexpression of the oncogene can lead to uncontrolled cell growth. This is bec...