the environment

2. The problem of the slow steady rise in temperature of the earth’s atmosphere, caused by an increase of gases such as carbon dioxide in the air surrounding the earth, which trap the heat of the sun.
3. Rain mixed with sulphuric, nitric and other acids formed by gases released into the atmosphere when fossil fuels are burned.
5. Someone who catches and kills animals illegally.
8. A layer of ozone high above the earth’s surface, which absorbs most of the ultraviolet radiation reaching the earth from the sun.
9. Fuels such as oil, coal and natural gas.
10. gases that trap the heat of the sun in the earth's atmosphere, producing the greenhouse effect.
11. Invisible rays that are part of the energy that comes from the sun, can burn the skin, and cause skin cancer.

1. The process of minimising waste by recovering materials and transforming them into new products.
4. Energy from a source that is not depleted when used, such as wind or solar power.
6. Waste, especially industrial waste, that is hazardous to human health or the environment and which requires special facilities for its disposal.
7. A prolonged period of abnormally low rainfall, leading to a shortage of water.