If the Earth has a radius of 6378 km and Mars a radius of 3396 km, what is the surface area-to-volume ratio of Mars compared to the Earth?
A) 0.53
B) 2.7
C) 1.9
D) 3.2

Question

Quizplus · Accepted Answer

The surface area-to-volume ratio is calculated by dividing the surface area by the volume. The formula for the surface area of a sphere is 4πr² and for the volume is (4/3)πr³. The ratio simplifies to 3/r. For Mars, this ratio is 3/3396, and for Earth, it is 3/6378. The ratio of Mars' surface area-to-volume ratio to Earth's is (3/3396) / (3/6378) = 6378/3396 ≈ 1.9.

If the Earth Has a Radius of 6378 Km and Mars