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प्रश्न
What do you understand by ppm?
उत्तर
ppm is parts per million, i.e. share in 1,000,000.
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संबंधित प्रश्न
What are their harmful effects?
State the main sources and effects of carbon monoxide.
Name the compounds of sulphur that cause air pollution. Also, state the harmful effects of sulphur compounds.
State the sources and effects of the following gas:
Carbon dioxide
State an advantage of CNG (Compressed Natural Gas).
Fill in the blank:
Excessive release of carbon dioxide in the atmosphere is the cause of __________ effect which produces global warming.
Select the correct answer:
Inhalation of air polluted with carbon monoxide is dangerous because:
What is the effect of the following pollutants on living beings?
Smog
Select the correct answer from the following statement:
The major pollutant released during burning of fossil fuels.
Give reason for the following:
Natural rain water does not have a pH of 7 [i.e. neutral]
