Across
- 3. Wild animals play an important part in the balance of nature and ... us with many important products such as: food, skin, fur etc.
- 5. There are some conservation areas for endangered ... of birds in the country.
- 7. Many species of animals and plants today are ... because people do not pay significant attention to protecting and conserving them.
- 8. Tropical ... have been cut down to satisfy man's need of timber and paper.
- 9. We have ... down so many trees that there are now vast areas of wasteland all over the world.
Down
- 1. Due to the uncontrolled hunting, many species, such as the blue whale or the American alligator, are in danger of ...
- 2. Wild animals also ...our surroundings more interesting in addition to supplying us with fur, food or other important products.
- 4. When an animal ... totally from the face of the earth, we say that it has become extinct.
- 6. The number of alligators is decreasing because people have been ... them for skin.
- 7. What would our world be like if all the wild animals and plants disappeared? Would our life still ... then?