12th Class Biology Human Health And Disease / मानव स्वास्थ्य और रोग

  • question_answer 73)
      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.

    Answer:

                      In metropolitan cities life style is responsible in lowering of immunity and sensitivity 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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