Gene differences are so important among the population because they the distinctivnes of people
Answer:
The chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production. ... Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone.
A bone cell, formed when an osteoblast becomes embedded in the matrix it has secreted.
It because they give us oxygen and without oxygen we would all die from oxygen deprivation.
the process that gives us oxygen is photosynthesis
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Answer:
One reason is that there was too much pressure in the bottom of the ocean, from all the water pressing together.
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Explanation:
