Question

what does aquatic life produce as a byproduct when consuming dissolved oxygen? carbon dioxide nitrogen gas ozone hydrogen gas

Explanation:

Aquatic life, like other organisms, undergoes respiration. During respiration, they consume oxygen and break down organic matter, producing carbon dioxide as a byproduct. Nitrogen gas, ozone, and hydrogen gas are not typical byproducts of aquatic life's oxygen consumption (respiration).

Answer:

A. carbon dioxide