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Environmental Issues · Question 48

AIPMT 2011 (Mains)MCQEasy📈 Topic in 12% papers+4−1
1

"Good ozone" is found in the

  1. Troposphere
  2. Ionosphere
  3. Stratosphere
  4. Mesosphere

Answer

(3) Stratosphere

Solution

As per NCERT, ozone in the lower atmosphere (troposphere) is harmful ('bad ozone'), whereas the 'good' ozone is found in the upper part of the atmosphere called the stratosphere, where it acts as a shield absorbing ultraviolet radiation from the sun.

Answer: (3)

Out of syllabusAIPMT 2011 (Mains)

Keep practising — Environmental Issues

2

Eutrophication is often seen in :

  1. Ocean
  2. Mountains
  3. Deserts
  4. Fresh water lakes
Out of syllabusAIPMT 2011 (Prelims)
3

Which one of the following pairs of gases is the major cause of "greenhouse effect"?

  1. CFCs and SO2
  2. CO2 and CO
  3. CO2 and N2O
  4. CO2 and O3
Out of syllabusAIPMT 2011 (Prelims)
4

Which one of the following statements is wrong in case of Bhopal tragedy?

  1. Thousands of human beings died
  2. It took place in the night of December 2/3, 1984
  3. Radioactive fallout engulfed Bhopal
  4. Methyl isocyanate gas leakage took place
Out of syllabusAIPMT 2011 (Prelims)
5

Which one of the following is the correct expanded form of the given acronym?

  1. IPCC = International Panel for Climate Change
  2. EPA = Environmental Pollution Agency
  3. UNEP = United Nations Environmental policy
  4. IUCN = International Union for Conservation of Nature and Natural Resources
Out of syllabusAIPMT 2011 (Prelims)
6

When domestic sewage mixes with river water

  1. The river water is still suitable for drinking as impurities are only about 0.1%
  2. Small animals like rats will die after drinking river water
  3. The increased microbial activity releases micro-nutrients such as iron
  4. The increased microbial activity uses up dissolved oxygen
Out of syllabusAIPMT 2010 (Mains)
7

A renewable exhaustible natural resource is –

  1. Forest
  2. Minerals
  3. Coal
  4. Petroleum
Out of syllabusAIPMT 2010 (Prelims)
8

dB is a standard abbreviation used for the quantitative expression of –

  1. the dominant Bacillus in a culture
  2. the density of bacteria in a medium
  3. a certain pesticide
  4. a particular pollutant
Out of syllabusAIPMT 2010 (Prelims)
9

The two gases making highest relative contribution to the greenhouse gases are –

  1. CFCs and N2O
  2. CO2 and N2O
  3. CO2 and CH4
  4. CH4 and N2O
Out of syllabusAIPMT 2010 (Prelims)
10

Global agreement in specific control strategies to reduce the release of ozone depleting substances, was adopted by :

  1. The Montreal Protocol
  2. The Kyoto Protocol
  3. The Vienna Convention
  4. Rio de Janeiro Conference
Out of syllabusAIPMT 2009
11

Biochemical Oxygen Demand (BOD) in a river water :

  1. Gives a measure of Salmonella in the water
  2. Has no relationship with concentration of oxygen in the water
  3. Increases when sewage gets mixed with river water
  4. Remains unchanged when algal bloom occurs
Out of syllabusAIPMT 2009

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