The important requirement of the aquatic life is___a) Dissolved Oxygen b) Dissolved Chlorinec) Dissolved Nitrogen d) Dissolved Methane

The important requirement of the aquatic life is a) Dissolved Oxygen.

Step 1: Understand the question. The question is asking about the most important requirement for aquatic life among the given options.

Step 2: Analyze the options. The options are Dissolved Oxygen, Dissolved Chlorine, Dissolved Nitrogen, and Dissolved Methane.

Step 3: Recall the knowledge about aquatic life. Aquatic life, including fish and other organisms, require oxygen to survive, just like terrestrial animals. They extract this oxygen from water.

Step 4: Make the conclusion. Among the given options, Dissolved Oxygen is the most important requirement for aquatic life. They cannot survive without sufficient levels of dissolved oxygen in the water.