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प्रश्न
Define smog.
Define the following:
Smog
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उत्तर
Smog is a combination of smoke and fog that forms droplets that remain suspended in the air.
संबंधित प्रश्न
Bhopal Gas Tragedy is a case of ________.
Photo chemical smog formed in congested metropolitan cities mainly consists of ______.
Living in the atmosphere of CO is dangerous because it ______.
Release of oxides of nitrogen and hydrocarbons into the atmosphere by motor vehicles is prevented by using ______.
Match the List I with List II and select the correct answer using the code given below the lists.
| List I | List II | ||
| A | Depletion of ozone layer |
1 | CO2 |
| B | Acid rain | 2 | NO |
| C | Photochemical smog | 3 | SO2 |
| D | Green house effect | 4 | CFC |
Assertion (A): If BOD level of water in a reservoir is more than 5 ppm it is highly polluted.
Reason(R): High biological oxygen demand means high activity of bacteria in water.
From where does ozone come in the photo chemical smog?
A person was using water supplied by corporation. Due to shortage of water he started using underground water. He felt laxative effect. What could be the cause?
Explain the effects of acid rain.
Explain how oxygen deficiency is caused by carbon monoxide in our blood? Give its effect.
