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Given that the Hawaiian Islands were formed from volcanic activity, what type of rock would be especially abundant on the islands? A. igneous B. sedimentary C. metamorphic D. composite - ANS-A. igneous (GS) Homo sapiens is the scientific name for A. the species that preceded human beings B. primates C. human beings D. mammals - ANS-C. human beings (GS) An infantry paratrooper makes a parachute jump from an airborne troop carrier. The paratrooper has a downward speed of 150 m/s when the parachute is deployed. For the first 5 s after the parachute opens up, the paratrooper experiences an average deceleration of 8 m/s^2. What is the paratrooper's speed at the end of those 5 s? A. 0 m/s B. 110 m/s C. 150 m/s D. 190 m/s - ANS-B. 110 m/s (GS) In defining the scope of a research project, a biologist writes that she will examine the interactions between decomposers and producers in a particular biome. Which of the following could be the focus of this project? A. the way in which crows feed off mammals that are struck by cars on highways within a major city B. the way in which geological forces such as wind and water act to create environments to which different organisms are adapted C. the way in which bacteria that live in the digestive tracts of most animals around the world interact with their hosts
D. the way in which fungi break down organic matter and plants use the resulting soil to grow in a temperate coastal forest - ANS-D. the way in which fungi break down organic matter and plants use the resulting soil to grow in a temperate coastal forest (GS) An air-powered toy car accelerates by pushing puffs of compressed air out behind it. The car is 0. kg, and can accelerate at a rate of 12 m/s^2. With what magnitude of force does the air leave the car's tank? A. 0.17 N B. 2.4 N C. 24 N D. 60 N - ANS-C. 24 N (GS) When dry ice (solid CO2) is put in a room temperature environment, it immediately starts producing a heavy gas. Unlike ordinary ice (made from water), it does not get wet or leave a puddle. What kind of phase change does it undergo? A. It melts B. It freezes C. It boils D. It sublimates - ANS-D. It sublimates (GS) You are in a space shuttle traveling through outer space. You leave Earth, then pass Mars. What is the next element of the solar system you would encounter? A. Saturn B. Kuiper belt C. Asteroid belt D. Venus - ANS-C. Asteroid belt (GS) In the early morning on a warm day after a cool night, the air above the ground quickly warms up and rises into the air. But any nearby bodies of water are cooler, and the air above the surface of the water tends to warm more slowly. As a result, the hot air on the shore of a lake, ocean, or river, tends to go up in the air, leaving a gap into which the cool air above the water rushes in, leading to a cool wind coming ashore off the water. This effect is a result of what heat phenomenon? A. refraction B. conduction C. convection
What would be the most appropriate unit to use to measure the mass of a paper clip in a lab? A. mm B. mg C. dL D. kg - ANS-B. mg (GS) A dog has a smooth coat of hair, a recessive trait. Which of the following must be true of this dog? A. The dog has a homozygous phenotype for hair texture, and one of its genes for hair texture may be dominant. B. The dog has homozygous alleles for hair texture, and its phenotype includes a smooth coat. C. The dog may have heterozygous alleles for hair texture, and its genotype is for a smooth coat. D. The dog's phenotype includes a smooth coat, and it had a parent with a smooth coat. - ANS-B. The dog has homozygous alleles for hair texture, and its phenotype includes a smooth coat. (GS) Fluorine has an atomic mass of 19 and an atomic number of 9. How many neutrons are in a typical fluorine atom? A. 9 B. 10 C. 19 D. 28 - ANS-B. 10 (GS) The variables x and y are integers. y=2x+1 and z=3y+ Which of the following must be true about the variable z? A. It is an even integer. B. It is an odd integer. C. It could be either even or odd. D. It may or may not be an integer. - ANS-A. It is an even integer. (AR) 3.125 x 10^-4 =? A. 0. B. 0.
C. 0.
D. 31,250 - ANS-C. 0.003125 (AR)
Which of the following is a prime factorization of 60? A. 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 B. 1, 1, 2, 3, 5, 8, 13, 21 C. 2, 2, 3, 5 D. 2, 3, 5, 7 - ANS-C. 2, 2, 3, 5 (AR) What is an average (arithmetic mean) of the numbers in a sequence that begins with - 5 and ends at 11, if each number in the sequence is 4 greater than the previous number? A. - 5 B. 2 C. 3 D. 4 - ANS-C. 3 Which of the following values is the closest to the value of 3^-2? A. 0. B. 0. C. 9 D. 81 - ANS-A. 0.11 (AR) Bianca has saved all her math tests from her years in school. Her ratio of As to Bs is 3:7. She received a total of 42 B tests. How many As did she earn? A. 3 B. 18 C. 98 D. 126 - ANS-B. 18 (AR) What is the value of the expression below? 6 (14 - 9) ------------- + ( 13 - 2) x 6 - 4^
A. 60
B. 75
C. 87
D. 88 - ANS-C. 87
Tim and Tom are cutting down a copse of trees. Tim is using a chainsaw, and can finish a copse this size in 3 hours by himself. Tom is using an axe, and would need 5 hours to do it alone. How long will it take them working together? A. 0.53 hours B. 1.88 hours C. 2.00 hours D. 8.00 hours - ANS-B. 1.88 hours (AR) (7^0) × (5^1) = A. 0 B. 1 C. 1/ D. 5 - ANS-D. 5 (AR) Micah has 2 good friends in his homeroom, 3 in his study hall, and 2 more that he gets together with after school. If he wants to give each of his friends an equal number of pieces of candy and keep 3 pieces for himself, what size bag of candy will let him do that with no candy left over? A. 7 pieces B. 12 pieces C. 21 pieces D. 24 pieces - ANS-D. 24 pieces (AR) if x is a negative integer, which of the answer choices must also be a negative integer? A. x(2 - 4) B. x + 4 C. x(4-2) D. x/3 - ANS-C. x(4-2) (AR)
