Multiple choice

Match the follwoing and identify the correct match-codes from the options ||| |---|---| |Column - A |Column - B | |A. Conversion of nitrate into nitrogen|1. Nitrification| |B. Conversion of ammonia into nitrites and then into nitrates|2. Ammonification| |C. Conversion of nitrogen in the atmosphere into ammonia|3. Denitrification| |D. Conversion of the organic nitrogen within the remains of plant or animal back into ammonium Bacteria, or fungi|4. Nitrogen fixation|

  1. A - 1, B - 2, C - 3 and D - 4

  2. A - 4, B - 1, C - 3 and D - 2

  3. A - 3, B - 2, C - 4 and D - 1

  4. A - 3, B - 1, C - 4 and D - 2

  5. A - 2, B - 1, C - 4 and D - 1
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Conversion of nitrate into nitrogen is denitrification; conversion of ammonia into nitrites and then into nitrates is nitrification; conversion of atmospheric nitrogen into ammonia is nitrogen fixation; and conversion of organic nitrogen within the remains of plants or animals back into ammonium by bacteria or fungi is ammonification.

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