Unit 4 · Biodiversity and Environment

Depletion of Natural Resources Presentation

ScienceSubject
12 minEstimated read
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Unit 4 · Biodiversity and Environment

Depletion of Natural Resources

Science & Technology · Grade 7

Learning Objectives

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Say exactly when depletion begins, in one sentence

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Sort the seven causes into two groups you can actually remember

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Explain why heavy fertiliser use is a loop and not a solution

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Explain why an enormous loss can happen without anybody noticing

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Depletion is not about use. It begins the moment the rate of taking becomes greater than the rate of replacing.

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Presenter notes: Open with a claim that sounds wrong and let them argue with it. Say that using a natural resource does not destroy it. Wait. Somebody will object that of course it does, because if you burn wood the wood is gone. Agree with the example and then point out that Nepal has been burning wood for as long as there have been villages in Nepal, and the forests were still there in your grandparents time. So what changed? Do not answer. Tell them the answer is one sentence long and they will have it in two minutes.