Question

how does aquatic animals and plants get their Oxygen and Carbon dioxide?​

Answer 1

Answer:DIFFUSION.

Explanation:aquatic animals and plants obtain oxygen and carbon dioxide through the process of DIFFUSION.

DIFFUSION is the process of intermixing between two different kinds of particles.FOR EXAMPLE;let us take the case of oxygen , the  particles oxygen in the atmosphere are able to mix with the water particles and thus be evenly spread across water .so aquatic animals depend on this diffused oxygen for their survival.similarly aquatic plants depend on diffused carbon dioxide for their survival .so the answer is simple ,aquatic plants get o2 and co2 from the diffused particles in water.

also aquatic animals are able to get the o2 released by aquatic plants