Pollution
- To meet Euro II emission standards, what should be the sulphur content in the ultra low sulphur diesel ?
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To meet the standards of Euro II emission the sulphur content in the ultra-low sulphur diesel should be 0.05 percent or less. Similar to Euro II in European countries India has Bharat Stage standards to regulate pollution by automobiles exhaust.
Correct Option: A
To meet the standards of Euro II emission the sulphur content in the ultra-low sulphur diesel should be 0.05 percent or less. Similar to Euro II in European countries India has Bharat Stage standards to regulate pollution by automobiles exhaust.
- Which of the following Megacities of India generates the largest solid waste per capita annually ?
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Delhi generates the largest solid waste per capita annually.
Correct Option: C
Delhi generates the largest solid waste per capita annually.
- The highest chemical pollution is caused by the industrial effluents of
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The highest chemical pollution is caused by the industrial effluents of leather industry. As the effluents contain heavy metals and tannins which kill the biodiversity of water bodies and increase its Biochemical oxygen Demand (BOD) which later results in Eutrophication.
Correct Option: A
The highest chemical pollution is caused by the industrial effluents of leather industry. As the effluents contain heavy metals and tannins which kill the biodiversity of water bodies and increase its Biochemical oxygen Demand (BOD) which later results in Eutrophication.
- Acid rain is caused due to air pollution by
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The term 'acid rain' means any form of precipitation like rain, fog, snow, or hail that contains harmful substances such as nitrogen and sulphur oxides. Acid rain is caused due to air pollution by nitrous oxide and sulphur dioxide.
Correct Option: D
The term 'acid rain' means any form of precipitation like rain, fog, snow, or hail that contains harmful substances such as nitrogen and sulphur oxides. Acid rain is caused due to air pollution by nitrous oxide and sulphur dioxide.
- The non-biotic pollution of underground water is
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Bacteria, algae and virus are all biotic. The non-biotic pollutant of underground water is arsenic. It may be found in water which has flowed through arsenic-rich rocks. Immediate symptoms on an acute poisoning typically include vomiting, oesophageal and diarrhoea pain, and bloody "rice water" diarrhoea. Chelation therapy may be effective in acute poisoning but should not be used against long-term poisoning.
Correct Option: C
Bacteria, algae and virus are all biotic. The non-biotic pollutant of underground water is arsenic. It may be found in water which has flowed through arsenic-rich rocks. Immediate symptoms on an acute poisoning typically include vomiting, oesophageal and diarrhoea pain, and bloody "rice water" diarrhoea. Chelation therapy may be effective in acute poisoning but should not be used against long-term poisoning.