MEDIUM
Earn 100

Which of the following gases are air pollutants ?
(a)Carbon mono oxide
(b)Nitrogen
(c)Carbon dioxide
(d)Both a and c

50% studentsanswered this correctly
Important Questions on Environmental Issue
EASY
Match the following
List-I | List-II | ||
(A) | Hospital wastes | (I) | Electrostatic precipitators |
(B) | pollution | (II) | Catalytic converters |
(C) | Particulates | (III) | Scrubbers |
(D) | Automobile exhausts | (IV) | Biotoilets |
(V) | Incinerators |

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MEDIUM
_____ (Electrostatic precipitator/Trajectory separators) is the most efficient device to eliminate particulate matter from industrial emissions.

EASY
_____ is used in aerosol sprays. (Choose one of the following: CFC/Methane).

EASY

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EASY
Fill in the blank with the correct word given in the bracket.
The contamination of environment by unwanted substances is known as _____ (pollution/inversion).

EASY
Mathura oil refinery | Prevents | Oxygen | Hot | Boiling |
Chlorofluorocarbons | Filtration | CNG, LPG | Air | Acid rain |

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MEDIUM

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