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Question generated: Which human activity most often has a harmful effect on the environment?

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Question generated: Which process directly adds carbon into the atmosphere?

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Question generated: The first step in the construction of a building typically involves

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David planted ten corn seeds in sandy soil and ten corn seeds in clay soil. He kept both groups of plants at room temperature, gave them the same amount of water, and placed them all in the same sunny room. Which of the following questions is David most able to answer with his experiment?