Which form of natural selection on polygenic traits results in the creation of two distinct phenotypes? The answer is, <u><em>B. Disruptive selection</em></u>
The answer, though i'm not quite sure' should be sulphate aerosols, though i think that is actually what the clouds are made out of. So the answer might be instead just stratospheric ash clouds
The Cretaceous Period was the last and longest period of the Mesozoic Era. It lasted 79 million years.