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प्रश्न
Which one of the following is NOT a significant factor in creating noise pollution?
विकल्प
Mechanised construction
Automobiles
Fodder cutting machine
Variety of industries
उत्तर
Fodder cutting machine
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संबंधित प्रश्न
Identify the wrong statement in the following.
What is degradable pollutants?
Which one of the following is the cause of acid rain?
What is the difference between pollution and pollutants?
Describe the major source of air pollution.
Which is the natural source of air pollution?
What is the source of pollution along the banks of Ganga?
Which one of the following rivers is highly polluted?
Which of the following problems is caused by air pollution?
Name the anthropogenic sources of water pollution.
Which of the following are the most polluted rivers of India?
The disposal of urban waste has become a serious concern for the local authorities. Analyze the statement with suitable examples.
Biochemical Oxygen Demand, (BOD) is a measure of organic material present in water. BOD value less than 5 ppm indicates a water sample to be ______.
Which of the following conditions shows the polluted environment.
(i) pH of rain water is 5.6.
(ii) amount of carbondioxide in the atmosphere is 0.03%.
(iii) biochemical oxygen demand 10 ppm.
(iv) eutrophication.
What are the sources of dissolved oxygen in water?
Match the activity given in Column I with the type of pollution created by it given in Column II.
| Column I (Activity) | Column II (Effect) | ||
| (i) | Releasing gases to the atmosphere after burning waste material containing sulphur. |
(a) | Water pollution |
| (ii) | Using carbamates as pesticides | (b) | Photochemical smog, damage to plant life, corrosion to building material, induce breathing problems, water pollution |
| (iii) | Using synthetic detergents for washing clothes |
(c) | Damaging ozone laye |
| (iv) | Releasing gases produced by automobiles and factories in the atmosphere. |
(d) | May cause nerve diseases in human. |
| (v) | Using chlorofluorocarbon compounds for cleaning computer parts |
(e) | Classical smog, acid rain, water pollution, induce breathing problems, damage to buildings, corrosion of metals. |
Assertion (A): If BOD level of water in a reservoir is less than 5 ppm it is highly polluted.
Reason (R): High biological oxygen demand means low activity of bacteria in water.
How can you apply green chemistry for the following:
To reduce use of synthetic detergents.
How can you apply green chemistry for the following:
To reduce the consumption of petrol and diesel.
A farmer was using pesticides on his farm. He used the produce of his farm as food for rearing fishes. He was told that fishes were not fit for human consumption because large amount of pesticides had accumulated in the tissues of fishes. Explain how did this happen?
Which of the following is a natural source of air pollution?
Which of the following is the largest contributor to water pollution in India?
Respiratory diseases are mainly caused by ______ pollution.
Explain the causes and consequences of water pollution.
Which in wrong with respect to our responsibility as a human being to protect our environment?
