Question

Release of phosphates and nitrates in water bodies (rivers and lakes) leads to

• A. Increased algae growth
• B. Increased growth of decomposers
• C. Decreased nutrient content
• D. Reduced algae growth

Answer 1

Answer: (A)

Increased algae growth

The release of phosphates and nitrates into water bodies will increase the nutrient content of water bodies. This process is called as eutrophication. It leads to explosive growth of blue-green alga and other aquatic vegetation. When such aquatic organism dies, it leads to huge degradation of biomass which leads to decrease in concentration of oxygen and creates a condition of hypoxia.

So, the correct answer is option A.