1. Representative a) when a particular type of animal or plant stops existing [1] 2. Greenhouse gas b) someone who has been chosen to speak, vote, or make decisions [1]
3. Atmosphere c) very important and needing to be dealt with [1]
4. Goods d) the mixture of gases that surrounds the Earth [1]
5. Extinction e) dry weather not enough water for plants and animals [1]
6. Drought f) a gas, such as carbon dioxide, that traps heat above the Earth [1]
7. Urgent g) things that are made to be sold, products [1]
