Answer:
When fluids (liquids and gases) are heated, they expand and therefore become less dense. Any object or substance that is less dense than a fluid will float in that fluid, so hot water rises (floats) in colder water.
Explanation:
When you heat up water, the water molecules start moving around faster and faster. ... So hot water is less dense than cold water. When you put the two together with the hot water on the bottom, the hot water rises to the top.
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Answer:
a process used by plants to convert sunlight to energy
Answer:
Mitochondrial DNA is circular, so it doesn't shorten when it replicates unlike the rest.
Answer:
the fish experienced an evolutionary change because of genetic drift
Explanation:
