The correct statement about domestic waste is :
1. | Only biodegradable domestic waste can be used as manure. |
2. | Non-biodegradable waste should be sent to industries for recycling. |
3. | It can be disposed off in a landfill. |
4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPhytoplanktons kill the fish because :
1. | Phytoplanktons decrease the BOD level that causes the death of fish. |
2. | Phytoplanktons increase the BOD level that causes the death of fish. |
3. | Phytoplanktons reduce the amount of dissolved CO2. |
4. | None of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the absence of greenhouse gases -
1. | Life on earth would be impossible. |
2. | Average temperature of the earth will decrease drastically. |
3. | There will be no effect on Earth |
4. | Both (1) and (2) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEnvironmental chemistry is best defined as :
1. Study of chemical processes in nature.
2. Study of biochemical processes in nature.
3. Both (1) and (2)
4. None of the above.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTropospheric pollution arises due to the presence of:
1. | SO2, SO3, and NO2, in the lowest layer of the atmosphere. |
2. | SO2, SO3, and NO2, in the uppermost layer of the atmosphere. |
3. | SO2, SO3, and NO2, in the middle layer of the atmosphere. |
4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGases responsible for greenhouse effect are :
1. Carbon dioxide (CO2)
2. Ozone (O3)
3. Nitrous oxide (N2O)
4. All of the above.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyStatues and monuments in India are affected by acid rain because of the formation of :
1. | CaSO4 on the reaction of acid rain with limestone. |
2. | CaCO3 on the reaction of acid rain with limestone. |
3. | Ca(HCO3)2 on the reaction of acid rain with limestone. |
4. | None of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement(s) regarding photochemical smog is/are:
1. | It occurs in a dry, sunny climate. |
2. | It is oxidizing in nature. |
3. | It is composed of PAN, acrolein, formaldehyde, nitrogen oxide, and ozone. |
4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe reaction/s involved during the formation of photochemical smog are:
\(1. \space NO_2(g) \rightarrow NO(g) + \stackrel{\cdot}{O(g)}\)
\(2. \stackrel{\cdot}{O(g)} + O_2(g) \rightarrow O_3(g)\)
\(3.\space O_3(g) + NO(g) \rightarrow NO_2(g) + O_2(g)\)
4. All of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe reaction(s) involved in ozone layer depletion in the stratosphere is/are:
1. | |
2. | |
3. | |
4. | All of the above |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology