I believe it is because the glass has a smaller coefficient of linear expansion than the water. The glass undergoes thermal expansion and thus when it heats up, it expands and when it cools down it contracts. The inside and the outside of the glass does not reach an equilibrium temperature very quickly since the glass has a low thermal conductivity. The surface of the glass rapidly contracts while the inner surface is expanding which causes the glass to crack.
Answer:
Evolution occurs about 6 million years ago.
Explanation:
The mammoth evolved from the common ancestor because evolution occurs about 6 million years ago. The modern elephants and woolly mammoths share a common ancestor and they are split into two separate species about 6 million years ago due to change in genetics as well as environment that leads to the evolution in the elephants.
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Answer: drink water
Explanation:
water keeps the body cold and hydrated.
The correct answer is (c) discover antigens in body fluids.
B lymphocytes act as antigen presenting cells that recognizes and displays the antigen to the white blood cells. These cells process the antigens that are present in body fluids. Professional antigen presenting cells includes B-lymphocytes, macrophages, dendritic cells, etc.
