Megadiverse means a lot of biodiversity. Mega = a lot
Diversity = variation
Answer:
B tectonic plates
Explanation:
I choose this because when the plates move that is how mountains, valleys and volcanoes are made. It is because of the shift.
Pollute the ocean I believe .. tell me if im wrong
If the water to rise then that could wipe out things like Florida which is only 10 feet above sea level and the population could go down depending on how high the water rose