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Matter in an ecosystem a. flows only one way b. is part of an open system c. is eventually lost as heat d. is broken down into chemical nutrients
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Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation
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Is there any solid scientific evidence that humans have been cloned?
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What would most likely happen if a person increased the amount of saturated fat in his or her diet? the person's risk of cardiovascular disease would increase. the person's risk of cardiovascular disease would decrease. the person's bad cholesterol would decrease. the person’s good cholesterol would increase.
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Matter in an ecosystem a. flows only one way b. is part of an open system c. is eventually lost as...
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