Charles Darwin predicted that tetrapods evolved from... to basically sum it up into one word. fish.
False. An ecosystem consists of all the living organisms as well as the nonliving components such as air, water and soil. But technically it does contain all the populations of different species, the definition is just missing a component.
Answer:
1. "a, O, and J"
2. "R and C"
3. I'm not entirely sure about #3, but I believe the answer is "d and R"
4."J, K, I, M, N"
5. "d"
6. "I" explain why: "It is at the bottom, so it is therefore the oldest."
7. "Q" explain why: "It is at the top, so it is therefore the youngest."
8. The folding occured before the faulting. Why? Because the folding is evident in the second half of the fault.
<u><em>DISCLAIMER: any of these answers could be wrong. I did my best but I am still human.</em></u>