Problem: Given the question: Rob is an environmental scientist. He is studying the effect of insect species on environment. For his study he chose four locations, location A, location B, location C and the entire globe, which he denoted as location D. He noticed location A's loss of biodiversity is temporary , but location B's loss is permanent. Location C's loss of biodiversity yet to be determined. Which location's biodiversity loss likely to be permanent, location C or location D?
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The answer is:
location D

Problem: Given the question: Two college buddies have known each other for 20 years. Tim was HIV positive while John was not and he didn't have a problem with it. Which friend doesn't have immune deficiency?
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The answer is:
John

Problem: Given the question: Two farms used AM fungi for the plants. Brown farm also decided to grow cover crops on those parcels of land to help mycorrhizal growth. Orange farm didn't grow cover crops. Which farm didn't increase the extraradical hyphal network that can colonize the roots of the new crop?
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The answer is:
Orange