I would say D! Purely because it is looking at the effects of humans (therefore related to topics more geographical).
Hope that helps. :)
Answer:
Sugar and phosphate
Explanation:
sugar and p h o s p h a t e
After the solar cycle takes place, bigger sun spots appear, flares appear, and the solar radiation changes.
If this doesn't answer your question, I'll try again. If there are options feel free to comment them as it can narrow down my choices.
Have a good day!
It has not. Evolution is not a process that can happen to individual organisms; it's change that happens to a species over many generations.
Spindle fibers form in cell divison
