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). what factor did elle control?
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