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- Any undesirable change in physical, chemical or biological characteris...
03:42
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- A pollutant can be best defined as it :
02:07
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- Hydrogen sulphide causes
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- Which of the following is a secondary air pollutant?
01:51
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- Air pollutants I.cause injury to all living organism II.reduce growth ...
04:50
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- Sulphur dioxide causes
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- Match the following columns
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- Which of the following device is used to remove over 99% particulate m...
02:36
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- Which of the following pollutant induces respiratory distress, inhibit...
02:00
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- Which method is used for the removal of sulphur dioxide and ammonia fr...
02:07
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- In almost all Indian metropolitan cities like Delhi, the major atmosph...
01:56
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- Rain is called acid rain, when its pH is below
02:01
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- Which of the following is//are the hazardous pollutant(s) present in a...
02:04
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- Which device is fitted to automobiles for reducing the emission of poi...
02:09
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- Catalytic converters are fitted in to automobiles for reducing emissio...
01:38
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- vehicles treated with catalytic converter should use lead free petro...
02:09
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- Catalytic converters are fitted into automobiles to reduce emission of...
03:51
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- List any two adverse effects of particulate matter on human health.
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- Euro III norms were stipulated to control
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- What is true about the Euro II norms ?
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