2. Questions Bank
  3. NEET
  4. Biology
  5. The Living World / जीव जगत

NEET Biology The Living World / जीव जगत Question Bank Origin of Life

  • question_answer
    How has the free \[{{O}_{2}}\] been released into the earth's atmosphere whereas there was no free \[{{O}_{2}}\] at the time of origin of life

    A)            By catabolic activity of animals

    B)            By photosynthetic activity

    C)            By heating of the earth

    D)            None of the above

    Correct Answer: B

    Solution :

     


You need to login to perform this action.
You will be redirected in 3 sec spinner