Multiple Choice Questions

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Good ozone is found in the 

  • mesosphere

  • troposphere

  • stratosphere

  • stratosphere


C.

stratosphere

The stratosphere is the second major layer of earth's atmosphere, just above the troposphere and below the mesosphere. It is the layer of ozone (O3). The ozone absorb high-energy UV-B and UV-C energy waves and breakdown into atomic Oxygen (O) and diatomic oxygen (O2).

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Eutrophication is often seen in 

  • fresh water lakes

  • Ocean

  • Mountains

  • Mountains

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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?

  • Increased skin cancer

  • Reduced Immune System

  • Damage to eyes

  • Damage to eyes

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Which two of the following changes (1-4) usually tend to occur in the plain dwellers when they move to high altitudes (3500 m or more)?

1) Increase in red blood cell size
2) Increase in red blood cell production
3) Increase in breathing rate
4) Increase in thrombocytes count

Changes occurring are

  • (2) and (3)

  • (3) and (4)

  • (1) and (4)

  • (1) and (4)

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

  • Thousands of human beings died

  • Radioactive fallout engulfed Bhopal

  • It took place on the night of December 2/3, 1984

  • It took place on the night of December 2/3, 1984

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A renewable exhaustible natural resource is

  • coal

  • petroleum

  • minerals

  • minerals

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Select the correct statement from the following

  • Bio-gas is produced by the activity of aerobic bacteria on animal waste

  • Methanobacterium is an aerobic bacterium found in rumen of cattle

  • Biogas, commonly called gobar gas, is pure methane

  • Biogas, commonly called gobar gas, is pure methane

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

  • pesticide pollution

  • noise pollution

  • population explosion

  • population explosion

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Which one of the following expanded forms of the followings acronyms is correct?

  • UNEP = United Nations Environmental Policy

  • EPA = Environmental Pollution Agency

  • IUCN = International Union for Conservation of Nature and Natural Resources

  • IUCN = International Union for Conservation of Nature and Natural Resources

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Which one of the following pairs of gases are the major cause of 'Greenhouse Effect'?

  • CO2 and CO

  • CFCs and SO2

  • CO2 and N2O

  • CO2 and N2O

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