Natural pollution includes smog. Smog is a combination of smoke in an air and fogs.
When you say natural pollution, it is not being caused by human rather caused by a natural resources or organism.
Falling leaves are natural, but its not a pollution.
The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success. If the frequencies of traits in a population change purely by chance , then genetic drift has occurred.
Answer:
Rock is a solid mixture of crystals of one or more minerals, or organic matter.
The dust bowl is the best example of which push or pull factor. Environmental push factor
All the conditions are in the pic i attached.
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