Answer:
That there used to be an abundance of plants and animals that lived there. Does this help?
Explanation:
Coal forms from dead things from the past being subjected to high pressure.
The water molecule slows down, meaning that it freezes because When water vapor in the atmosphere cools down, it will condense and change back into liquid water, forming clouds.
D : the number of generations in one population
Viruses are made of one or more nuclei acid molecules surrounded by a coat protein or capsid. So the core of the virus will contain the viral genome. Some viruses' capsid maybe enclosed with an envelope derived from the host cell (the cell that the virus is infecting), and this envelope is also derived from the host cell membrane.
