12. As the skydiver falls to Earth, her parachute helps her land safely by:
C. warming the
a. increasing air resistance
surrounding air
b. acting like a helium-filled balloon
d. blocking the Sun's rays

A

Explanation: How large a parachute is (in other words, the parachute's surface area) affects its air resistance, or drag force. ... In the case of these parachutes, the drag force is opposite to the force of gravity, so the drag force slows the parachutes down as they fall.

a

Explanation:

a is the answer to that question, increasing air resistance surrounding air

I hope this was helpful

4

explanation:

4