Answer:
C because it can take millions of years to breakdown carbon in plant tissues
Actually, the theory of evolution is false. Life didn't come about by chance, rather, there's a living god (who's name is Jehovah) that designed and created everything we know today. Even scientists don't have enough evidence to prove the theory of evolution. But the answer to your question is #3: Early life was aquatic because all of Earth was initially covered by ocean.
Answer:
C.emigration is the answer......
Do you need help or u just wanted to answer ?
Answer:
Ecological systems (ecosystems) have many biogeochemical cycles operating as a part of the system, for example, the water cycle, the carbon cycle, the nitrogen cycle, etc. All chemical elements occurring in organisms are part of biogeochemical cycles.