Living off earth's resources

4. what are the resources that exist without any actions of humankind?
5. as countries develop, people want?
6. when land become so degraded and dry its like a desert, what do we call it?
9. how many oercent of earth's water is fresh (not salty?
12. how many percent of earth's water is in the Oceans?
15. what is the most important energy type we all use now and treasure, people and countries even fight and buy over it, what is it?
17. when u dont have animals manure and can afford fertiliser, what do u put around the plant roots?
18. bare soil develops a?

1. most of the water in Ogallala is atleast 8000 years old, what is the water called?
2. when u dig a hole, line it with leaves or vegetable scraps, and animal manure, and put a young plant in it, what do they call it?
3. in water cycle, when water is evaporated from the ocean, it leaves what behind?
7. how many more times are there more water below ground than in rivers and lakes?
8. when soil is poor quality,through misuse, what do we call it?
10. what are wind energy, and solar energy in which type of resources?
11. what is also taken in by the air trapped in soil?
13. where do people bury soil?
14. the demand for water is?
16. when we let too many animals graze on soil for too long, it ends up bare and?
19. where does the water get taken in when its on plants?
20. what does the nutrients plants need?