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Question
Which of the following does not cause water pollution?
Which of the following does not cause water pollution?
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Solution
The correct option is D Dissolved Oxygen
The correct option is :D.
The explanation for the correct option:
- Water pollution refers to the contamination of the water bodies like rivers, lakes, canals, ponds, and seas.
- It is caused by industrial and agricultural waste.
- Dissolved oxygen does not cause water pollution as it decreases biological oxygen demand and helps organisms to survive.
The explanation for the incorrect options:
Option A
Domestic wastes cause water pollution as it increases eutrophication and biological oxygen demand increases which leads to pollution and the death of organisms.
Option B
Insecticides and pesticides cause water pollution.
Option C
Heavy metals also cause water pollution.
Final answer: Dissolved oxygen does not cause water pollution.
Dissolved Oxygen
The correct option is :D.
The explanation for the correct option:
- Water pollution refers to the contamination of the water bodies like rivers, lakes, canals, ponds, and seas.
- It is caused by industrial and agricultural waste.
- Dissolved oxygen does not cause water pollution as it decreases biological oxygen demand and helps organisms to survive.
The explanation for the incorrect options:
Option A
Domestic wastes cause water pollution as it increases eutrophication and biological oxygen demand increases which leads to pollution and the death of organisms.
Option B
Insecticides and pesticides cause water pollution.
Option C
Heavy metals also cause water pollution.
Final answer: Dissolved oxygen does not cause water pollution.
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