Question

Why does the increased level of nutrients (or fertilizers) in the lake water affect the survival of aquatic organisms (like fish)?

Answer 1

1.The increasing level of fertilizers in soil is hazardous for aquatic life

2.The main reason of water pollution with fertilizers is soil pollution

3.Increasing level of using the fertilizers causes that

4.It cause adverse effects on the fish

Answer 2

Increased level of nutrients in the lake water:

• When the concentration of fertilizers increase in lake water, it leads to rapid growth of algae on the surface of water.
• This process is called eutrophication.
• This process results in green color plants all over the lake.
• The plants is the surface use oxygen from water for respiration. This leads to lack of oxygen to aquatic plants and animals.
• When there is lack of oxygen, it eventually leads to death of animals and plants in it.