Question

water is only substance that expands on__​

Answer 1

Answer:

Cooling

Explanation:

below 4 degrees Celsius, water is the only substance which begins to expand.

4 degrees C turns out to be the temperature at which liquid water has the highest density. If you heat it or cool it, it will expand. The expansion of water when you cool it to lower temperatures is unusual, since most liquids contract when they're cooled.