Question

What is a major source of carbon in the marine ecosystem?

calcium carbonate released by marine animals

carbon dioxide released during photosynthesis of marine plants

carbon dioxide released from the fossils of marine organisms

Answer 1

@Warriorz13

Answer 2

carbon dioxide released from the fossils of marine organisms

Answer 3

3/5 failed

Answer 4

*** ;-;-;-;-;-;-;-;-;-;

Answer 5

try again

Answer 6

Duh

Answer 7

@theDeviliscoming