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.