Quiz 2021: Prelims Power Play 11 February 2021

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This quiz contains 5 questions and each contains 1 points.

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1. Consider the following statements

  1. Both Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) signify quality of water.
  2. Higher BOD indicates lower water quality.
  3. Biological Oxygen Demand (BOD) is always equal to or greater than Chemical Oxygen Demand (COD).
 
 
 
 

2. Which of the below geographical bodies are endorheic

  1. Pongong Tso
  2. Caspian Sea
  3. Aral Sea
  4. Sambhar Lake
 
 
 
 

3. Consider the following statements

  1. It is the Earth’s largest inland body of water.
  2. It lies at the junction of Europe and Asia
  3. It is an example of endorheic basin
 
 
 
 

4. Which of the following Biosphere Reserves is/are recognized internationally under Man and Biosphere Reserve program

  1. Sunderban
  2. Nanda Devi
  3. Manas
  4. Achanakmar – Amarkantak
  5. Great Nicobar
  6. Khangchendzonga
 
 
 
 

5. Which of the following statements with respect to Eutrophication is / are correct?

  1. Eutrophication is a syndrome in lakes caused primarily by leaching of phosphate and nitrate containing fertilizers from agriculture fields.
  2. The Eutrophication process decreases the Biological Oxygen Demand (BOD) of the ecosystem.

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