ENVIRONMENT
Across
- 3. able to decay naturally and in a way that is not harmful
- 10. the natural environment in which an animal or plant usually lives
- 13. the process by which land changes into desert, for example because there has been too much farming activity on it or because a lot of trees have been cut down
- 15. the general weather conditions usually found in a particular place
- 16. in danger of being harmed, lost, unsuccessful
- 17. the process by which land or buildings sink to a lower level
- 18. a large amount of ice, snow, and rock falling quickly down the side of a mountain
- 21. a substance that causes cancer
- 22. a substance that makes something less pure or makes it poisonous
- 24. the business of organizing holidays to places of natural beauty in a way that helps local people and does not damage the environment
- 25. of or connected with the heat inside the earth
- 26. the number and types of plants and animals that exist in a particular area or in the world generally, or the problem of protecting this
- 27. the cutting down of trees in a large area, or the destruction of forests by people
Down
- 1. an occasion when a volcano explodes, and flames and rocks come out of it, or the act of doing this
- 2. a person who studies the natural relationships between the air, land, water, animals, plants, etc.
- 4. something, such as a disease or a chemical, that may harm people, animals, or the environment
- 5. the fact of soil, stone, etc. being gradually damaged and removed by the waves, rain, or wind
- 6. the protection of plants and animals, natural areas, and interesting and important structures and buildings, especially from the damaging effects of human activity
- 7. An extremely large wave caused by the movement of the earth under the sea, often caused by an earthquake
- 8. the act of sending out gas, heat, light, etc
- 9. the mixture of gases around the earth
- 11. a severe snow storm with strong winds
- 12. a fire that is burning strongly and out of control on an area of grass or bushes in the countryside
- 14. the hobby of studying wild birds in their natural environment
- 19. a person who is interested in or studies the environment and who tries to protect it from being damaged by human activities
- 20. A long period in which there is little or no rain. This year a severe drought has ruined the crops
- 23. a layer of rock, sand, or earth that contains water or allows water to pass through it