Question

which situation best shows causation?
the length of a rectangle affects the width of the rectangle.
the amount of time a cell phone is used affects the charge of its battery.
the number of ice - cream bars sold affects the number of milkshakes sold.
the number of soccer balls a team owns affects the number of games the team wins during the soccer season.

Explanation:

Causation implies a cause - and - effect relationship. Using a cell - phone consumes battery power. So, the more time a cell - phone is used, the more its battery charge will decrease. In the other cases: the length and width of a rectangle are independent in most cases; the sales of ice - cream bars and milkshakes may be related to external factors rather than a direct cause - and - effect; the number of soccer balls a team owns is not directly related to the number of games it wins.

Answer:

The amount of time a cell phone is used affects the charge of its battery.