Question

Bonjour!
Explain Eutrophication and diseases caused by certain elements present in water

Answer 1

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Eutrophication

→ The entry of nutrient-rich water (due to run-off and leaching of chemical fertilizers) in water bodies results in a thick growth of algae called algal bloom and many other weeds. Soon these plants cover the entire surface of water. This is called eutrophication.

1. Nutrient load up:

excessive nutrients from fertilizers are flushed from the land into rivers or lakes by rainwater.

2. Plants flourish:

these pollutants cause aquatic plant growth of algae, duckweed and other plants.

3. Algae blooms, oxygen is depleted:

algae blooms, preventing sunlight reaching other plants. The plants die and oxygen in the water is depleted.

4. Decomposition further depletes oxygen:

dead plants are broken down by bacteria decomposers, using up even more oxygen in the water.

5. Death of the ecosystem:

oxygen levels reach a point where no life is possible. Fish and other organisms die.

▶️Diseases caused by certain elements present in water:

Mercury : Minamata disease

Cadmium : Itai-Itai disease

Fluoride : Skeletal fluorosis

Arsenic : Black foot disease

Excess nitrates : Blue baby syndrome

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Answer 2

♥️ $\huge\red{♡HeLLo♡!!}$ ♥️

EUTROPHICATION : the entry of nutrient rich water due to run off and leaching of chemical fertilizers in water bodies results in a thick growth of algae is called algal Bloom and many other waves soon these plants cover the entire surface of water this is famously known as eutrophication .

♥️ $\huge\red{Process}$ ♥️

1. nutrient load up

2. plants flourish

3. algae blooms, oxygen is depleted.

4. decomposition for the depletes oxygen .

5. death of the ecosystem

♥️ $\huge\red{Diseases}$ ♥️

ELEMENT

1. Mercury minamata disease

2. cadmium itai-itai disease

3. fluoride skeletal fluorosis

Hope it helps you......✌✌✌