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What is the significance of dissolved oxygen in water for aquatic life?

Options

  1. ADissolved oxygen is not essential for aquatic life.
  2. BDissolved oxygen sustains aquatic life.
  3. CDissolved oxygen is harmful to aquatic organisms.
  4. DDissolved oxygen has no impact on aquatic life.

Correct answer

B. Dissolved oxygen sustains aquatic life.

Step-by-step solution

The paragraph states that it is the dissolved oxygen in water that sustains all aquatic life.

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