Explanation:
combustion happens when we dig up fossil fuel and burn it, so when we do that whatever is left goes into the air starting the carbon cycle again
it would be kind of an advantage as they breathe air and just stay on land and to get food it can go into the water
Organelle,The primary role of the flagellum is locomotion but it also often has function as a sensory organelle, being sensitive to chemicals and temperatures outside the cell. Flagella are organelles defined by function rather than structure.
I honestly think that a or d would be the best options. I would start with D and if that doesn't work try a.