Ques:Answer the following question given this paragraph: Q: What is given off from plants and taken in by animals? Choices: - methane - sulfur - nitrogen - oxygen A:

Ans:oxygen
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Ques:Answer the following question given this paragraph: Q: What do increasing greenhouse gas concentrations in the air do to the earth's temperature? Choices: - Lower it - stable it - Pollute - raise it A:

Ans:raise it
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Ques:Answer the following question given this paragraph: Q: What kind of fossils are excellent markers for correlating the ages of sedimentary rocks? Choices: - agonum - euglena - vertiscom - foram A:

Ans:foram
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Ques:Answer the following question given this paragraph: Biochemical compounds are carbon-based compounds that are found in living things. The similarity in biochemical compounds between living things provides evidence for the evolution of species from common ancestors. Q: The similarity in biochemical compounds between living things provides evidence for the evolution of species from what? Choices: - recent ancestors - varied ancestors - rare tribes - common ancestors A:

Ans:
common ancestors
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