Home PYQs UPPSC UPPSC MCQs Prelims 2012 (GS Paper I)

Question

As an ecosystem, wetlands are useful for which of the following?

  1. For nutrient recovery and cycling
  2. For releasing heavy metals through absorption by plants
  3. In reducing siltation of rivers by retaining sediments
  4. All the above

Answer:

Option D: All the above

Detailed Solution:

The correct answer is “All the above”.

As an ecosystem, wetlands are useful for nutrients recovery and cycling, releasing heavy metals through absorption by plants. They also control the floods and maintain the rivers.