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Karnataka Board PUCPUC Science 2nd PUC Class 12

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. - Biology

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Question

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.

Short/Brief Note
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Solution

Allergy is the exaggerated response of the immune system to certain antigens present in the environment. In metropolitan cities, lifestyle is responsible in lowering of immunity and sensitivity to allergens. More polluted environment 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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Chapter 8: Human Health and Diseases - SHORT ANSWER [Page 59]

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NCERT Exemplar Biology [English] Class 12
Chapter 8 Human Health and Diseases
SHORT ANSWER | Q 17. | Page 59

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