A Sence Of Place Flashcards
1
Q
How many people on earth
A
8 billion people
2
Q
How much of the earth is covered by the seas
A
70% of the earth
3
Q
How much of the earth is covered desert.
A
10%
4
Q
How deep into the earth is mostly liquid rock
A
4,000
5
Q
How thick is the earths solid crust
A
3-44 miles
6
Q
How old is the earth
A
4,550 million years old
