Across
- 4. a group of animals that produces eggs and uses the heat of the sun to keep its blood warm
- 6. damage caused to water,air, etc. by harmful substances or waste
- 7. for example a river that repeatedly turns in different directions
- 9. adjective, for example a forest where the trees are very close to each other and it is hard to see through
- 10. a wild animal of the cat family, it can run faster than any other animal
Down
- 1. a small bird with pointed wings and tail, we have a lot of it in Hungary and it moves to Africa for the winter
- 2. any animal of which the female feeds the young on milk from her own body
- 3. a chemical substance used to kill harmful insects, small animals, wild plants and other unwanted
- 5. the thick main part of a tree, from which its branches grow
- 8. an area, often covered with sand or rocks, where there is very littlerain and not many plants