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Which of the following substances is used up during photosynthesis? oxygen sugar sulfur dioxide water
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The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere
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If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm
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Which of the following substances is used up during photosynthesis? oxygen sugar sulfur dioxide wat...
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