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10th Class Science Our Environment Question Bank Our Enviornment and Management

  • question_answer
    Select the group in which the odd one out is circled incorrectly.

    A)

    B)

    C)

    D)

    Correct Answer: C

    Solution :

    Livestock wastes are biodegradable while polyethylene bags and lead (heavy metal) are non-biodegradable. Proteins and carbohydrates are organic components whereas carbon dioxide is inorganic. Coal, groundwater and petroleum are natural resources. Chlorofluorocarbon is an ozone depleting substance. Organopesticides and fertilizers are agricultural wastes.


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