In the context of solving pollution problems what is/are the
advantage/disadvantages of bioremediation technique?
1. It is a technique for cleaning up pollution by enhancing the same biodegradation process
that occurs in nature.
2. Any contaminant with heavy metals such as cadmium and lead can be readily and
completely treated by bioremediation using microorganisms.
3. Genetic engineering can be used to create microorganisms specifically designed for
bioremediation.
Select the correct answer using the code given below:
Prelims
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Environment › PollutionXImpact & remediation
Environment › PollutionXImpact & remediation
Options
Answer
(C)
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Environment › PollutionXSources
Environment › PollutionXSources
Consider the following pairs :
Commonly used / Unwanted or consumed materials controversial chemicals likely to be found in them
1. Lipstick — Lead
2. Soft drinks — Brominated vegetable oils
3. Chinese fast food — MonosodiumglutamateWhich of the pairs given above is/are correctly matched?
Options
Answer
(D)
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Environment › SpeciesXHabitat
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Environment › SpeciesXThreats and Conservation efforts
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Geography › ClimatologyXMonsoon,ENSO,IOD
Geography › ClimatologyXMonsoon,ENSO,IOD
With reference to ‘Indian Ocean Dipole (IOD)’ sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?
1. IOD phenomenon is characterized by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.
2. An IOD phenomenon can influence an El Nino’s impact on the monsoon.Select the correct answer using the code given below:
Options
Answer
(B)
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Geography › Indian Geography:Map Based
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Geography › Indian Geography:Mountains,Hills
Geography › Indian Geography:Mountains,Hills
Consider the following statements:
1. In India, the Himalayas are spread over five States only.
2. Western Ghats are spread over five States only.
3. Pulicat Lake is spread over two States only.Which of the statements given above is/are correct ?
Options
Answer
(B)
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Geography › Indian Geography:Rivers,Lakes
Geography › Indian Geography:Rivers,Lakes
With reference to river Teesta, consider the following statements:
1. The source of river Teesta is the same as that of Brahmaputra but it flows through Sikkim.
2. River Rangeet originates in Sikkim and it is a tributary of river Teesta.
3. River Teesta flows into Bay of Bengal on the border of India and Bangladesh.Which of the statements given above is/are correct?
Options
Answer
(B)
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Geography › Oceanography