Question

what expands on reducing the temperature below 4 degree Celsius

Answer 1

heya

Water is the answer to ur question.

Simply because of ice getting the crystal structure with widely spaced molecules. And that being wider than spacing in liquid water .

Answer 2

Answer:

what expands on reducing the temperature below 4 degree Celsius- Water

Explanation:

At 4 degrees C, liquid water has the highest density. If you heat it or cool it at this temperature, it will expand. The expansion of water when you cool it to lower temperatures is unusual case, since generally most liquids contract when they are cooled