Question

What do aquatic organisms need to breathe

A: Dissolved nitrogen
B: Dissolved oxygen
C: Dissolved Argon
D: Dissolved Carbon

Answer 1

Answer:

dissolved oxygen

Explanation:

it is because every animal whether on land or water needs oxygen.

Answer 2

$\mathtt \red{B: Dissolved \: oxygen}$

Oxygen is essential for respiration as it helps in converting food into energy.