Answer:
D.both A and B
Explanation:
because if there some option,like abcd and the letter d. is both a and b that is the correct answer.
Answer:
I would say fossil evidence because fossil and rock clues are what led to Wegener's theory of Continental Drift
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!
Dependent reaction is the factor that is observed and measured
