With reference to sources of water pollution, which of the following is/are true?

1. Natural sources
2. Domestic sources
3. Agricultural sources
4. Industrial sources

Only 4

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Only 2, 3 and 4

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Only 3 and 4

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1,2, 3 and 4

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Solution

The correct option is D
1,2, 3 and 4

Water pollution is caused by a variety of human activities such as industrial, agricultural and domestic and also by natural sources. Natural sources of pollution of water are soil erosion, leaching of minerals from rocks and decaying of organic matter.

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Question 31
Read the paragraph and answer the questions following it. Water is essential for life. Without water, there would be no life. We usually take water as granted for its purity, but we must ensure the quality of water. Pollution of water originates from human activities. Through different paths, pollution reaches to groundwater. Easily identified source or place of pollution is called as point source, e.g.– municipal and industrial discharge pipes, where pollutants enter the water source. Non–point sources of pollution are those where a source of pollution cannot be easily identified, e.g.– agricultural run off, acid rain etc.
(i) How do you classify the various sources of water pollution?
(ii) What are the point sources of water pollution?
(iii) Name any two non-point sources of water pollution?

Q. Assertion :Sewage, industrial effluents, and wastewater are non-point sources of water pollution. Reason: Surface runoff is point source of water pollution.

Q. Which of the following are natural sources of air pollution?

Q. Which of the following is the industrial sources of soil pollution?

Q. Match the pollutants involved in the contamination of water bodies with their sources.

\begin{matrix} Pollutants & Source (A) Microorganisms & (1) Chemical fertilizers (B) Heavy metals & (2) Industrial effluents (C) Sediments & (3) Domestic sewage (D) Phosphorus and nitrogen & (4) Run off from plains \end{matrix}

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With reference to sources of water pollution, which of the following is/are true? 1. Natural sources 2. Domestic sources 3. Agricultural sources 4. Industrial sources

The correct option is D 1,2, 3 and 4 Water pollution is caused by a variety of human activities such as industrial, agricultural and domestic and also by natural sources. Natural sources of pollution of water are soil erosion, leaching of minerals from rocks and decaying of organic matter.

With reference to sources of water pollution, which of the following is/are true?

1. Natural sources
2. Domestic sources
3. Agricultural sources
4. Industrial sources

The correct option is D
1,2, 3 and 4

Water pollution is caused by a variety of human activities such as industrial, agricultural and domestic and also by natural sources. Natural sources of pollution of water are soil erosion, leaching of minerals from rocks and decaying of organic matter.