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Chloroplast and Photosynthesis - Class XII

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Multiple Choice

Amount of $ C{ O} _{ 2 } $ mixed  annually is about 

  1. $70\times 1{ 0 }^{10 } Kg $
  2. $ 70\times 1{ 0 }^{11 } Kg$
  3. $ 70\times 1{ 0 }^{13 } Kg $
  4. $ 70\times 1{ 0 }^{13 } g $