<span>d. all of the above<<<<<<<<<</span>
<h2>How would populations be impacted by climate change from increased greenhouse gases?</h2>
<h3><em><u>A)</u> Areas that experience droughts would experience increased precipitation.</em></h3>
B) There would be an increase in yield for crops from expanding drought areas.
C) Growing seasons would be altered for crops.
D) Water shortages would no longer be an issue.
<h2 />
The correct answer is 4.) Eventually they become separate species
A process of formation of a new species from an existing species is called speciation.
When a single species changed into two or more separate species, is called speciation. Speciation can take place due to reproductive isolation. In reproductive isolation, the separated species no longer can interbreed among themselves. This is happened due to mating differences, sterility or environmental barriers which finally results into the adaptive splitting into two species.