UPSC General Studies Sample Paper General Studies Sample Paper-9

  • question_answer
    Impending crisis of global warming has overwhelmed humanity at large. Which of the following are the name of technologies, could be used for carbon-sequestration?                   
    1. NOTT-202                
    2. Ocean-iron fertilisation                    
    3. BECCS         
    Select the correct answer using the codes given below.                                 

    A)  1 and 3

    B)  1 and 2           

    C)  2 and 3           

    D)  All of these   

    Correct Answer: D

    Solution :

    [d] NOTT-202 is 'metal-organic framework that works like a sponge, absorbing a number of gases at high pressures but as pressure is reduced, \[C{{O}_{2}}\] is rejoined as others are released. As per reported in 'Nature' magazine, NOTT-202 holds promise for carbon capture and storage. Through ocean- iron fertilisation, iron particles are added in layers of ocean, which induces growth of phytoplankton. Phytoplankton in turn absorb carbon from atmosphere. BECCS refers to bio-energy induced carbon capture storage. One of way is trapping methane in seams of rock only.

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