Answer: here´s why
Explanation: Underneath the frozen upper layer, the water remains in its liquid form and does not freeze. Also, oxygen is trapped beneath the layer of ice. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen lakes and ponds. If water is heated, its volume gradually decreases.
Answer:
I think it is the variable.
Explanation:
Answers;
Ancient China
Earthenware, stoneware, and bronze were common mediums used in ancient China.
Earthenware is clay fired at relatively low temperatures of between 1,000 to 1,150 degrees.
Stoneware is made from a particular clay which is fired at a higher temperature of 1,200°C. This results in a more durable material, with a denser, stone-like quality.