2. Questions Bank
  3. 4th Class
  4. Science
  5. Our Environment

4th Class Science Our Environment Question Bank Our Environment

  • question_answer
    The change in the number of water plants in four ponds, P, Q, R and S, over four months is shown in the graph. Which pond is the most polluted?

    A)  P

    B)  Q

    C)  R

    D)  S

    Correct Answer: D

    Solution :

    Polluted water contains harmful chemicals from sewage, industrial wastes, fertilizers, etc. This affects the growth of the plants. The given graph shows that the number of plants growing in pond 'S' remains low, therefore, pond 'S' is the most polluted one.


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