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प्रश्न
Excessive use of chemical fertilizers depletes the soil and causes water pollution.
विकल्प
True
False
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उत्तर
Excessive use of chemical fertilizers depletes the soil and causes water pollution- true.
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संबंधित प्रश्न
What are the major causes of water pollution? Explain.
Classify the given sources of water pollution as natural and manmade:
(1) domestic waste
(2) dead animals
(3) oil spills
(4) ashes released due to forest fires
Study the picture given below and answer the following questions :
Name one pollutant that causes the above the pollution.
Give an account of various sources and harmful effects of water pollution.
Fill in the Blanks:
The release of hot water into rivers causes ______.
71% of earth surface is covered with:
Name two heavy metals from industries that pollute water.
Which of the following is a water pollutant?
The concentration of fluoride, lead, nitrate and iron in a water sample from an underground lake was found to be 1000 ppb, 40 ppb, 100 ppm and 0.2 ppm, respectively. This water is unsuitable for drinking due to the high concentration of ______.
BOD is measure of ______.
