Environment

3. gases gases that trap the heat of the sun in the earth's atmosphere, producing the greenhouse effect
5. contamination of the air, water, or soil with substances that can cause harm to human health or the environment
6. protecting, maintaining or improving natural resources, to keep them safe from destruction or degradation and conserve them for future generations
10. destruction of forests to make land for agriculture
12. capable of being broken down or decomposed by natural biological processes
14. the release or discharge into the air of pollutant substances such as gas or smoke
15. fuels fuels such as oil, coal and natural gas
16. warming a gradual warming of the earth's surface temperature reportedly caused by the emission of gases that trap the sun's heat in the earth's atmosphere

1. the study of the relationship of living things (plants, animals and humans) with each other and with their environment
2. the process of minimising waste by recovering materials and transforming them into new products
4. the surroundings and external conditions that affect the growth and development of living things
7. rain rain mixed with sulphuric, nitric and other acids formed by gases released into the atmosphere when fossil fuels are burned
8. an area designated to receive household garbage, solid waste and construction debris
9. a measure of the effect that human activities have on the climate
11. a community of plants, animals and other organisms living in an area which provides what they need in order to survive
13. location where garbage, rubbish or waste is taken and just dumped, without environmental controls