Question

the Great Lakes in North American hold about what percent of Earth's fresh surface water? 5% 10% 15% 20%

Answer 1

20% Good sir. (Character limit fill)

Answer 2

Answer:

Option D, 20%

Explanation:

The volume of great lakes in near to 4910 cubic miles

1 cubic miles is equal to 4.16 cubic kilometer

Thus, 4910 cubic miles is equal to 20465 cubic kilometer

The amount of fresh water (on planet earth) available  to human  beings is near to 100,000 cubic kilometer

Thus, the % of fresh water holded by Great lakes in North America as compared to the total fresh water available to human use is $\frac{20465}{100000} * 100\\= 20$ %

Hence the correct answer is option D, 20 %