Match the following:

Column – I

Column- II

 A. CFC

(i) Green House Effect

 B. CO2

(ii) Most available gas

 C. N2

(iii) Poisonous gas (Toxic gas)

 D. CO 

(iv) Ozone depletion

This question was previously asked in
HTET PRT 2019 Official Paper
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  1. A - I, B - II, C - III, D - IV
  2. A - III, B - I, C - IV, D - II
  3. A - III, B - IV, C - II, D - I
  4. A - IV, B - I, C - II, D - III

Answer (Detailed Solution Below)

Option 4 : A - IV, B - I, C - II, D - III
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HTET PGT Official Computer Science Paper - 2019
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Detailed Solution

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The correct answer is A-IV, B - I, C - II, D - III.

The correct match:

Column – I

Column- II

 A. CFC

(iv) Ozone depletion

 B. CO2

(i) Green House Effect

 C. N2

(ii) Most available gas 

 D. CO 

(iii) Poisonous gas (Toxic                  gas)

Additional Information

  • Nitrogen (N2) is a colourless, odourless and tasteless gas that makes up 78.09% (by volume) of the air we breathe.
  • It is nonflammable and it will not support combustion.
  • Chlorofluorocarbon formerly used as a refrigerant and as a propellant in aerosol cans.
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