If one population dies out, all the populations that depend on that species for food may also die out. A change in one population affects the entire community because all the populations of a community depend on each other.
The correct answer is "dust storms".
First of all, rain, unless it is acid rain, is not a source of pollution although it is a natural phenomena. Pesticides and fossil fuels both cause pollution but they are a man-made phenomena not natural. Dust storms produce pollution in the air by swifting dust rendering the air almost unhabitable. This is a natural occurence and at the same time, pollutes.
Answer:
our planet's velocity could increase until it reaches 60 km/s (37 mi/s).
Explanation:
If you look into a diagram of a virus you will be able to see that the outside of a virus is surrounded by a capsid, that is made with proteins.
the middle of metaphase I
