Ncert Exercises & Solutions

Q. 56 In the metropolitan cities of India, many children are suffering from allergy/asthma. What are the main causes of this problem. Give some symptoms of allergic reactions.

In metropolitan cities life style is responsible in lowering of immunily and sensitivily to allergens. More polluted environment like dust in surroundings increases the chances of allergy in children, Some symptoms of allergic reactions are sneezing, watery eyes,

running nose and difficulty in breathing,

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