Question

Assertion : Many visitors to the hills suffer from skin and respiratory allergy problems. 

Reason : Conifer trees produce a large quantity of wind-borne pollen grains.

(a) Both A and R are true and R is the correct explanation of A.

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

The correct option is (a) Both A and R are true and R is the correct explanation of A.

Explanation:

Some trees of hills like oak. ash, elm, hickory, pecan and mountain cedar produce allergic pollen grains which cause allergy to people visiting the hills and thus they suffer from respiratory and skin allergy problems. The signs and symptoms of pollen allergy are 

- sneezing 

- itching eyes, nose and throat 

- dark circles under the eyes caused by restricted blood flow near the sinuses 

- watering eyes 

- conjunctivities 

Conifer trees produce a large quantity of wind borne pollen grains because many pollen grains are destroyed in the process of pollination done by wind.