MEDIUM
Earn 100

Which of the following gases are air pollutants ?

50% studentsanswered this correctly

Important Questions on Environmental Issue

EASY

Match the following

  List-I   List-II
(A) Hospital wastes (I) Electrostatic precipitators
(B) SO2 pollution (II) Catalytic converters
(C) Particulates (III) Scrubbers
(D) Automobile exhausts (IV) Biotoilets
    (V) Incinerators
EASY
Which one of the following statements is not valid for aerosols?
EASY
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to
EASY
Acid rain is caused by the increase in the atmospheric concentration of :
EASY
Which of the following is a secondary pollutant?
MEDIUM
Fill in the blank with the correct option from the bracket.
_____ (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
The increase in toxicity (poisonous effect) by reaction among the primary pollutants is called _____ due to which effect is enhanced.
EASY
Particles with least diameter are present in _____.
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
_____ cause the depletion of the ozone layer.
Mathura oil refinery Prevents Oxygen Hot Boiling
Chlorofluorocarbons Filtration CNG, LPG Air Acid rain
MEDIUM
When rainfall contains very high amounts of nitric and sulphuric acids, it is called _____.
EASY
_____ used in old refrigerators depletes the ozone layer.
EASY
Chlorofluorocarbons (CFCs) cause depletion of the _____ layer. (ozone/ mesosphere)
EASY
Rubber particles and dust raised by running motor vehicles are examples of _____ (particulate/water) pollutants.
EASY
CFCs cause depletion of _____. (Mesosphere/ Ozone layer/ Troposphere)
EASY
Metals lose _____ because of acid present in the rain.