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GK MCQs Section
Q. Consider the following pairs:
  1. Grey water footprint - the amount of fresh water required to assimilate pollutants to meet specific water quality standards
  2. Blue water footprint - the water that has been sourced from surface or groundwater resources and is evaporated
  3. Green water footprint - the water in the form of precipitation that is stored in the root zone of the soil
Which of the above is/are correct?
Answer: 1, 2 & 3
Notes:
  1. Grey water footprint - the amount of fresh water required to assimilate pollutants to meet specific water quality standards (Correct)
  2. Blue water footprint - the water that has been sourced from surface or groundwater resources and is evaporated (Correct)
  3. Green water footprint - the water in the form of precipitation that is stored in the root zone of the soil (Correct)

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.