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Environmental Issues · Question 34

AIPMT 2015 (Cancelled)MCQEasy📈 Topic in 12% papers+4−1
1

Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?

  1. Increased liver cancer
  2. Increased skin cancer
  3. Damage to eyes
  4. Reduced Immune System

Answer

(1) Increased liver cancer

Solution

As per NCERT, UV-B damages DNA and mutation may occur; it causes aging of skin, damage to skin cells and various types of skin cancers. In human eye, cornea absorbs UV-B radiation, and a high dose causes inflammation of cornea (snow-blindness, cataract).

⇒ Greater UV exposure also suppresses the immune system.

∵ UV radiation does not penetrate deep into the body, it does not cause liver cancer.

∴ Increased liver cancer is not a health risk of ozone depletion.

Answer: (1)

Out of syllabusAIPMT 2015 (Cancelled)

Keep practising — Environmental Issues

2

High value of BOD (Biochemical Oxygen Demand) indicates that :

  1. water is highly polluted
  2. consumption of organic matter in the water is higher by the microbes
  3. water is pure
  4. water is less polluted
Out of syllabusAIPMT 2015 (Cancelled)
3

Rachel Carson's famous book "Silent Spring" is related to:

  1. Population explosion
  2. Pesticide pollution
  3. Ecosystem management
  4. Noise pollution
Out of syllabusAIPMT 2015 (Cancelled)
4

The zone of atmosphere in which the ozone layer is present is called :

  1. Mesosphere
  2. Stratosphere
  3. Ionosphere
  4. Troposphere
Out of syllabusAIPMT 2014
5

A scrubber in the exhaust of a chemical industrial plant removes :

  1. particulate matter of the size 5 micrometer or above
  2. particulate matter of the size 2.5 micrometer or less
  3. gases like ozone and methane
  4. gases like sulphur dioxide
Out of syllabusAIPMT 2014
6

Kyoto-Protocol was endorsed at :

  1. CoP-6
  2. CoP-4
  3. CoP-3
  4. CoP-5
Out of syllabusNEET 2013
7

Global warming can be controlled by :

  1. Increasing deforestation, slowing down the growth of human population
  2. Reducing deforestation, cutting down use of fossil fuel
  3. Increasing deforestation, reducing efficiency of energy usage
  4. Reducing reforestation, increasing the use of fossil fuel
Out of syllabusNEET 2013
8

The Air (Prevention and Control of Pollution) Act came into force in :

  1. 1985
  2. 1981
  3. 1990
  4. 1975
Out of syllabusNEET 2013
9

The second commitment period for Kyoto Protocol was decided at :

  1. Doha
  2. Cancun
  3. Durban
  4. Bali
Out of syllabusNEET 2013 (Karnataka)
10

Climate of the world is threatened by :

  1. Decreasing amount of atmospheric carbon dioxide
  2. Increasing concentration of atmospheric oxygen
  3. Decreasing amount of atmospheric oxygen
  4. Increasing amount of atmospheric carbon dioxide
Out of syllabusNEET 2013 (Karnataka)
11

Which one of the following is not correct as regards the harmful effects of particulate matter of the size 2.5 micrometers or less?

  1. It can directly enter into our circulatory system
  2. It can be inhaled into the lungs
  3. It can cause respiratory problems
  4. It can cause inflammation and damage to the lungs
Out of syllabusNEET 2013 (Karnataka)

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