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प्रश्न
Which one of the following river is highly polluted?
विकल्प
Brahmaputra
Satluj
Yamuna
Godavari
उत्तर
Yamuna
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संबंधित प्रश्न
Define environmental chemistry.
Identify the wrong statement in the following.
What is degradable pollutants?
What is non-degradable pollutants?
Which one of the following diseases is caused by water pollution?
Which one of the following is the cause of acid rain?
Describe the major source of air pollution.
What is the source of pollution along the banks of Ganga?
Which town along the banks of Yamuna is polluted?
Name the anthropogenic sources of water pollution.
Which of the following are the most polluted rivers of India?
Which of the following naturàl activities is responsible for air pollution?
How is the use of plastic bags harmful for environmental degradation? Evaluate it by citing suitable reasons.
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 ______.
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because ______.
A factory was started near a village. Suddenly villagers started feeling the presence of irritating vapours in the village and cases of headache, chest pain, cough, dryness of throat and breathing problems increased. Villagers blamed the emissions from the chimney of the factory for such problems. Explain what could have happened. Give chemical reactions for the support of your explanation.
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.
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 elements is both a water pollutant and air pollutant?
Which of these sources are responsible for water pollution?
- Households
- Industries
- Farms and fields
- Tourism
Which of the following is not a cause of air pollution?
Respiratory diseases are mainly caused by ______ pollution.
Explain the causes and consequences of air pollution.
How has noise pollution become a serious problem in recent years in India? Explain.
