Where are the choices? Can you give the choices so we can answer the question?
No. The trends go in different directions. CO2 goes up more than the volcanoes. It is the general trend that makes a difference compared to the fluctuations.
Natural? I know that it has 4 factors -<span>Variation. Organisms (within populations) exhibit individual variation in appearance and behavior. ... <span>Inheritance. Some traits are consistently passed on from parent to offspring. ... </span><span>High rate of population growth. ... </span><span>Differential survival and reproduction.</span></span>
<span>Competition occurs when members of different species compete for the same resource. </span>
A b c d e all of the above