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प्रश्न
Study the picture given below and answer the following questions :
Name one pollutant that causes the above the pollution.
उत्तर
Sewage
APPEARS IN
संबंधित प्रश्न
Do you know of any activity which may be polluting this water source?
Define pollution. “Industries are pouring poison in water” - Explain
List the three major constituents of sewage.
A lot of fish are dying near a sea shore. Describe any two possible causes.
Give a reason why :
Polluted water causes disease.
Explain the different ways by which water gets polluted.
Contamination of water bodies by human activities is called ______ pollution.
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.
- How do you classify the various sources of water pollution?
- What are the point sources of water pollution?
- Name any two non-point sources of water pollution?
BOD is measure of ______.
Study the picture given below and answer the question:
How does water get polluted?
