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Which of the following following gases is used up during photosynthesis? a) carbon dioxideb)nitrogenc)oxygen d) sulfur dioxide
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If water is at -10 ° c and energy is added to the water until it is 50 ° c while maintaining a constant pressure of 760 mmhg, describe the phase change of the water?
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The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird
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Why are current extinctions of concern to enviromentalists?
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Which of the following following gases is used up during photosynthesis? a) carbon dioxideb)nitrogen...
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