2. Sample Papers
  3. 4th Class
  4. Science

4th Class Science Sample Paper Science Olympiad Model Test Paper-9

  • question_answer
               Which one of the following gas is essential for photosynthesis?

    A) Oxygen            

    B) Carbon dioxide

    C) Nitrogen            

    D) Helium

    E)  None of these

    Correct Answer: B

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