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Who is responsible for making sure that water in the U.S. is safe to drink?
a) EPA, Environmental Protection Agency
b) FDA, Food and drug administration
c) NOAA, National Oceanic and Atmospheric Admininstration
d) CDC, center for disease control

Scientists think that whales and dolphins may have evolved from a similar ancestor. Which of the following supports this?
a) They swim the same way
b) they eat the same food
c) they live in the same area of the ocean
d) they have similar anatomies

Which of the following would we measure to give us a better understanding of how healthy a body of water is?
a) the depth and width
b) temperature and pH
c) location and depth
d) the amount of sun it gets and depth

Why are ice cores important to the study of geologic history?
a) They show unconformities, which signal changes in sediment formation.
b) They hold index fossils and give us the relative age of rock layers
c) They contain evidence showing changes in the atmospheric conditions
d) They follow the law of superposition, which tells us information about species extinction

If there is an increase in the amount of upwelling near myrtle beach, which of the following could happen?
a) they would have more fish and organisms living there
b) there would be less nutrients in the water
c) the water would be more polluted
d) the water would be at a higher temperature

If a scientists finds the fossil of a trilobite in the bottom rock layers and a mammal a few rock layers up, what could be concluded from this evidence?
a) Trilobites ate the mammals
b) Trilobites were eaten by mammals
c) Trilobites lived before mammals
d) Trilobites and mammals lived at the same time

When we measure the amount of nitrates what do we measure?
a) How hot or cold the water is
b) How clear the water is
c) The amount of nutrients in the water
d) How acidic or basic the water is

When we measure the pH of water, what do we measure?
a) How hot or cold the water is
b) How clear the water is
c) The amount of nutrients in the water
d) How acidic or basic the water is

What does turbidity measure?
a) How hot or cold the water is
b) How clear the water is
c) The amount of nutrients in the water
d) How acidic or basic the water is

Which of the following is the process that water vapor goes through when it changes from a gas back to a liquid water droplet?
a) transpiration
b) evaporation
c) condenstation
d) precipitation

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