Nature and environment

12345678910
Across
  1. 2. a young lion, bear, wolf, etc.
  2. 4. a person who takes care of animals in a zoo for example
  3. 5. the process of collecting and changing old paper, glass, plastic, etc. so that it can be used again
  4. 9. dangerous
  5. 10. the activity of cutting down trees in order to use their wood
Down
  1. 1. either of the two long, pointed teeth of some animals such as elephants
  2. 3. a set of animals or plants in which the members have similar characteristics to each other and can breed with each other
  3. 6. animals or plants that may soon not exist because there are very few now alive
  4. 7. the natural environment in which an animal or plant usually lives
  5. 8. down to end the life of an animal so as to prevent its suffering in old age or illness