2. Questions Bank
  3. 8th Class
  4. Science
  5. Combustion and Flame

8th Class Science Combustion and Flame Question Bank Combustion and Flame Formative Objective Problems

  • question_answer
    Which of the following gases is responsible for global warming?

    A)  Carbon monoxide          

    B)  Carbon dioxide               

    C)  Nitrogen           

    D)  Ozone

    Correct Answer: B

    Solution :

      Carbon dioxide is a product of combustion of various fuels. An increased concentration of carbon dioxide in the atmosphere is said to be the reason for global warming. Carbon dioxide traps heat and this trapped heat increases the average temperature of the Earth, thereby causing global warming. The correct answer is B.


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