Question

1). What % of the surface of the earth is covered by water!

12.5%
75%
3%
25%

2). What % of the surface of the earth is covered by unsable land, meaning we can live on it and farm it?

12.5%
75%
3%
25%

3). What % of the water of earth is unsable by man (fresh)?

12.5%
75%
3%
25%

4). What % of the surface earth is covered by land

12.5%
75%
3%
25%

Answer 1

1) 75% 3) 3% 4) 25%

I don't know the answer to number 2 but I hope this helped