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प्रश्न
Study the picture given below and answer the question:
How does water get polluted?
उत्तर
Sewage, industrial effluents and oil spills.
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संबंधित प्रश्न
What do you mean by Biochemical Oxygen Demand (BOD)?
Study the picture given below and answer the following questions :
State one measure to control this pollution.
Write a brief note on acid rain.
List two major harmful effects of the following:
Rivers contaminated with sewage.
What are the common sources of oil spills?
Fill in the Blanks:
The release of hot water into rivers causes ______.
True or False:
Sources of groundwater pollution include leaking sewer lines, pumping wells, landfills, fertilizer, and sludge.
Excessive use of chemical fertilizers depletes the soil and causes water pollution.
What are the major sources of Water pollution?
Define the following term:
Oil spills
