Environment and extreme weather

4. a long period of dry weather when there is not enough water for plants and animals to live
7. a storm that has very strong fast winds and that moves over water
9. such as coal or oil that is produced by the gradual decaying of animals or plants under the ground and are used to make energy
11. a sudden shaking of the Earth’s surface that often causes a lot of damage
12. becomes larger or moves so that it affects more people or a larger area
14. animals and plants growing in natural conditions
15. the natural home of a plant or animal
16. cloudy air near the ground which is difficult to see through
17. to put used objects or materials through a special process so that they can be used again
19. a sudden fall of a lot of earth or rocks down a hill, cliff etc
20. the process of making air, water, soil etc dangerously dirty and not suitable for people to use

1. to continue to live after a difficult situation, an accident, war, or illness
2. someone who does a job willingly without being paid
3. to send people away from a dangerous place to a safe place
5. frozen raindrops which fall as hard balls of ice
6. unwanted materials or substances that are left after you have used something
8. the state of being without a job
9. extremely cold
10. cold enough to make you feel uncomfortable
13. fairly warm
16. a situation in which a large number of people have little or no food for a long time and many people die
18. a very large amount of water that covers an area