Would this be speciation?
Answer:
probably the particles that are in the wind itself
Explanation:
Question 3 you could say that…
The closer you are to the equator (30N-30S) the more solar radiation present. This leads to, less clouds appearing in them areas and the climate bring quite hot.
Do you mean Planets not Plants? If so, I believe your answer would be...
Elliptical
Hope this helps! :)