Question

A disadvantage of gas exchange in aquatic habitats, as compared with terrestrial habitats, is that
A. Gas exchange surface tends to collapse in water
B. Water current are too slow for most types of surfaces
C. Oxygen concentration in water is much lower than in air
D. Carbon dioxide concentration in water is much lower than in air
E. Oxygen concentration in water is higher than in the air

Answer 1

It will be C

Answer 2

In atmosphere its 21% but inside an ocean its very less, specially when it becomes warm

Answer 3

Got it ?

Answer 4

ohh oky!! yaa :)