Question

~PLEASE HELP OFFERING 10 POINTS~

Answer 1

You are looking for something "if A, then B" equals "if B, then A".
The only one that satisfy the above is B.

Answer 2

As the amount of water vapor in the air increases, the rate at which you perspire increases.
Reversed: As the rate at which perspire increase, the amount of water vapor in the air increases. Hmmmm. nope

As the amount of fuel consumed by a vehicle increases, the distance traveled by the vehicle increases.
Reversed: As the distance traveled by the vehicle increases, the amount of fuel consumed by a vehicle increase. Sounds right.

As the amount of fertilizer used on a crop increases, the yield of that crop increases.
Reversed: As the yield of the crop increases, the amount of fertilizer used on a crop increases.

As the amount of rainfall in a region increases, the groundwater level in the region increases.
Reversed: As the groundwater level in the region increases, the amount of rainfall in a region increases.

HOPE THIS HELPS!!! (PLEASE MARK ME AS BRAINIEST IF I DESERVED IT)!!