Answer: c.Species diversity
Explanation: 2020 edge and the other persons is wrong!
The answer is most likely: 'with an abundance of plant life without oxygen in the atmosphere '. The atmosphere contained almost no free oxygen during the Archean. It does not appear as if this epoch had an abundance of plant life, but rather mats of single-celled photosynthesising cyanobacteria. So I am not completely sure that either of the given choices are correct.
Answer:
They are found primarily in the Atlantic Ocean however they are both salt and freshwater organisms.
The sun! It's solar radiation heats our planet, gives us light, and sustains life.
Answer:
30...365; observe the ratio.
