Multiple choice In hilly areas, water boils at a temperature of less than 100 degree Celsius more than 100 degree Celsius 100 degree Celsius 200 degree Celsius none of these Reveal answer Fill a bubble to check yourself A Correct answer Explanation At higher altitudes, atmospheric pressure is lower. Since the boiling point of a liquid decreases as pressure decreases, water boils at a temperature below 100 degrees Celsius in hilly areas.