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Ecology and Environment
Quick questions on Human impact on the environment: N(A)-Level Biology Ecology and Environment
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is pollution?Show answer
Pollution is the release of harmful substances into the environment. Common kinds are:
What is deforestation?Show answer
Deforestation is cutting down large areas of forest, often for wood, farmland or building. It harms the environment in two main ways. It destroys habitats, so the animals and plants that lived there lose their homes and food, reducing biodiversity (the variety of living things). And it raises carbon dioxide, because fewer trees means less carbon dioxide removed by photosynthesis, and burning the wood releases even more.
What is reducing the harm?Show answer
People can reduce the damage by:
What is q1?Show answer
Name one greenhouse gas. [1 mark]
What is q2?Show answer
State one harmful effect of deforestation. [1 mark]
What is q3?Show answer
Explain how using renewable energy instead of fossil fuels helps the environment. [2 marks]
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