EASY
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Tiny particles of solid material suspended in the air are called particulates.

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Important Questions on Environmental Chemistry

MEDIUM
Write two effects of peroxyacetyl nitrate (PAN).
MEDIUM
We are surrounded by smoke. Is this situation good for our health ? Give reason.
MEDIUM
Differentiate between primary and secondary air pollutants.
MEDIUM

Complete the tree diagram and write examples of (A) and (B).

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HARD

An example of secondary air pollutant is

HARD
By scrubbers, which of the gaseous pollutant is removed?
EASY
A river with an inflow of domestic sewage rich in organic waste may result in:
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

Speculate the probable causes of each of the following phenomena:

  • Insomnia, High blood pressure, partial or complete deafness
  • Decrease in the concentration of dissolved oxygen in water and floating of dead fishes
  • Dwindling populations of alligators were the result of hunting and loss of habitat,
  • Inflammation in the respiratory tract of lung
  • Decrease in the number of pollination insects 
EASY
Describe the role of citizens in solid waste management.
EASY
Lichens are sensitive to certain air pollutants and are often replaced by other plants. From the given options choose the best combination of sensitivity and replacement of lichens.
EASY
Particulates of size pose greatest risk to human health.
EASY
A scrubber in the exhaust of a chemical industrial plant removes:
EASY
Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of
MEDIUM
The gas which traps heat 20 times more than CO2 is