Question

1. water is being pumped into a large cylindrical tank. which is the independent variable in this situation?

a. how long the water is being pumped (time)
b. how much water is in the tank (feet)
c. how tall the tank is (height)

Explanation:

An independent variable is the one that is manipulated or changed to observe its effect on another variable. In the situation of pumping water into a tank, time (how long water is pumped) is the independent variable because the amount of water in the tank depends on how long the water is pumped (dependent variable), and the tank's height is a constant (not a variable in the pumping process). So option A is correct.

Answer:

A. how long the water is being pumped (time)