Answer: A, through extensive testing and the accumulation of several lines of evidence
Explanation:
I belive the correct answer is D
Hope this helps :)
Khan Academy is great! Also, Alison (it's a website) has some free courses as well.
Answer:
C
Explanation:
This is because niche talks about tje role of an organism.
Considering the humidity of the organism is not given a role to the organism.
Easy. HISTORY or GEOGRAPHY books of specific areas you want to know more about.