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7th Class Science Respiration in Organisms Question Bank Respiration In Plants And Animals

  • question_answer
    What will happen to lime water when we exhale air into it?

    A) remains same 

    B) turns milky

    C) becomes colorless       

    D) turns blue

    Correct Answer: B

    Solution :

    Exhaled air contains carbon dioxide which turns lime water milky due to formation of calcium carbonate.


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