II. Put the correct word for the sentences below.
deforestation preserve greenhouse effect fossil fuels
damage depletion pollute global warming
1. The ____ _____ occurs when the earth's atmosphere traps certain gases such as carbon dioxide as well as water vapour. This makes the earth's surface warmer.
2. ________________ is harm or injury that makes something less valuable or able to function.
3. To ____________________ is to keep and protect something from damage, change or waste.
4. __________________ are non-renewable energy sources such as coal, fuel oil and natural gas formed from dead plants and animals underground.
5. ___ ________________ is the gradual increase of temperature on the earth's surface due to greenhouse effect.
6. ______ ____________ ______ is the using up or reducing something like energy or resources.
7. To _________________is to make air, water, or soil dirty or unclean.
8. _________________ is the removal or cutting down of all trees in an area for urban use and farm lands.
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Sinh Học lớp 12
