1
an animal or plant that is seriously at risk of extinction
2
when the Earth's atmosphere becomes thick with gases and substances which trap the sun's radiation, making the Earth warmer
3
examples: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulphur hexafluoride (SF6), and nitrogen trifluoride (NF3)
4
a change in global or regional climate patterns; in particular, a change starting in the 20th century onwards and attributed largely to increased levels of atmospheric carbon dioxide produced by the use of fossil fuels
5
the action of cutting down a wide area of trees (for example, in the Amazon Rainforest)
6
a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation
7
an adjective to describe something that is used only once and can be thrown away
8
to decay or break down into simpler elements
9
not depleted by use; does not run out
10
to disappear from the face of the Earth (2 words)
11
to convert waste or old materials into something reusable
12
to contaminate (water, the air, etc.) with harmful or poisonous substances
13
precipitation that was not absorbed into the soil or did not evaporate; it runs downhill to oceans, rivers, and streams; it can sometimes carry pesticides or fertilizers that have washed away
14
to injure or kill (someone or something) with a toxic substance
15
to dispose of (rubbish, waste, or unwanted material), typically in a careless or hurried way
16
to put or hide underground
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