Question

Approximately how many time greater is the amount of earth surface that is covered by water compared to the amount of earth of earth surface that is covered by land?

Answer 1

The amount of the earth’s surface covered by water is 2.12*10^8 greater than the amount of the earth’s surface covered by land.

Explanation:

(Subtraction of scientific notation)

Earth’s surface covered by water- 3.61*10^8

Earth’s surface covered by land- 1.49*10^8

(3.61*10^8) - (1.49*10^8)

(3.61-1.49) *10^8

2.12*10^8

Hope this helps you out

Answer 2

71% water
29% land

71:29= 2,448=> the amount of earth surface that is covered with water is ~2,5 times bigger than the amount of earth surface that is covered with land