Elle wanted to test how temperature affects the rate of evaporation. she had
three setups
setup 1: elle placed a container with 1 cup of water at room temperature
(25°c).
setup 2: elle placed a container with 1 cup of water in a warm room (45°c).
setup 3: elle placed a container with 1 cup of water in a cold room (0°c).
which setup was the control?