Question

A group is diving at an depth of 20 feet. If they rise 20 feet, their new elevation will.

A. end up at exactly 0 feet of elevation.
B. result in a positive elevation.
C. result in a negative elevation.
D. be less than it was before.​

Answer 1

A. end up at exactly 0 feet of elevation.

Explanation:

This is because, at a depth of 20 feet, their position is -20 feet below the water surface. If they rise by 20 feet, we add 20 feet to their current position to reach their new position.

So, -20 feet + 20 feet = 0 feet.

So, their new elevation will end up at exactly 0 feet of elevation.