Why does the increased level of nutrients in the water affect the surv

1.	Why does the increased level of nutrients in the water affect the survival of aquatic organisms?
Answer» Plants nutrients: 1. Phosphates and nitrates – chemical fertilizers from agriculture run – off due to rain and industrial wastes enter into water through sewage and pollute the water. 2. It helps algae to bloom, weeds to grow and bacteria is spread. As a result water turn green and cloudy and smell bad. 3. Decomposing plants use up the oxygen in water, disrupting aquatic life, reducing biodiversity and even killing aquatic life. 4. Thus, this enrichment of water by nutrients leading to excessive plant growth and depletion of oxygen is known as ‘Eutrophication’. This affects aquatic life badly.

Why does the increased level of nutrients in the water affect the survival of aquatic organisms?

Answer»

Plants nutrients:

1. Phosphates and nitrates – chemical fertilizers from agriculture run – off due to rain and industrial wastes enter into water through sewage and pollute the water.

2. It helps algae to bloom, weeds to grow and bacteria is spread. As a result water turn green and cloudy and smell bad.

3. Decomposing plants use up the oxygen in water, disrupting aquatic life, reducing biodiversity and even killing aquatic life.

4. Thus, this enrichment of water by nutrients leading to excessive plant growth and depletion of oxygen is known as ‘Eutrophication’. This affects aquatic life badly.

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