5th Class Science Pollution and Calamities Question Bank Pollution and Calamities

  • question_answer
    Which one of the following pairs is wrongly classified?

    A)
    Positive effect on the environment Negative effect on the environment
    Incinerating rubbish in residential areas Covering opened dust bins left out in the open
                   

    B)
    Positive effect on the environment Negative effect on the environment
    Breeding animals like chicken and sheep for food Cutting down trees
                   

    C)
    Positive effect on the environment Negative effect on the environment
    Collecting rainwater for watering garden plants Feeding animals in the wild
                   

    D)
    Positive effect on the environment Negative effect on the environment
    Using recycled material Leaving unfinished food at the canteen table

    Correct Answer: A

    Solution :

    Incinerating rubbish in residential areas will have negative effect on the environment as it will release harmful gases in the air. Covering opened dustbins left out in the open will have positive effect on the environment as it will prevent insects (flies, mosquitoes, etc.) from spreading diseases.                


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