Across
- 4. If you _____ something, you make it smaller in size or amount, or less in degree
- 6. If there is a problem of _________ in an area, there are more people living there than can be supported properly
- 7. warming the gradual rise in the earth's temperature caused by high levels of carbon dioxide and other gases in the atmosphere
- 8. a wall that is built across a river in order to stop the water flowing and to make a lake
- 10. a shaking of the ground caused by movement of the Earth's crust
- 11. a low stretch of land between hills, especially one that has a river flowing through it.
- 13. an important subject that people are arguing about or discussing
Down
- 1. If there is a ____, a large amount of water covers an area which is usually dry, for example when a river flows over its banks or a pipe bursts
- 2. bin a container for waste that will be recycled, for example, paper or glass
- 3. an extremely violent wind or storm
- 5. the action of clearing a wide area of trees.
- 9. a part of a coast where the land curves inwards
- 12. When a volcano _____, it throws out a lot of hot, melted rock called lava, as well as ash and steam