Humans and nature

3. /a particular type of land地形地势
5. /an area of land covered with trees
6. /a type of animal that drinks mils from its mother's body when it is young
7. /when a person or animal is kept in a prison, cage, etc. and not allowed to go where they want
9. /a group of animals or plants whose members are similar and can breed together to produce young animals or plants
11. /resulting in someone's death
12. /of or forming or resembling a peninsula
15. /the study of ancient societies by examine what remains of their buildings, graves, tools, etc.
17. /the act of process of sailing or destroying something, for example by getting ride of a lot of people
18. /to try to stop thinking about something or someone
19. /羚羊
20. /a large area of flat land that is higher than the land around it

1. /trees that are cut down and used for building or making thins
2. /the variety of plants and animals in a particular place
3. /coming from or existing in the hottest parts of the world
4. /relating to a planet
8. /a large area of land in a hot country, where crops such as tea, cotton, and sugar are grown
10. /if an animal or pant reproduces, or reproduces itself, it produces young plants or animals
13. /the natural home of a plant or animal
14. /cut down trees
16. /the way in which members of a family are descended from other members