For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.

Review the verified answer and explanation for this DemoPaper-Pakistan past-paper question on CampusFin.

For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. Answer: 5

Question context

This question is part of ⚗️ Chemical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.