Question

4) list out any two harmful and useful effect of
pollengrains?​

Answer 1

no harmful effects are

itchy, watery eyes.

scratchy throat.

cough.

swollen, bluish-colored skin beneath the eyes.

decreased sense of taste or smell.

useful effects are

Pollen is used to manipulate plant traits. Cross-pollination is the process of fertilization between similar plants to improve them. Creating plants resistant to pests or dehydration or increasing crop production are a few changes made through cross-pollinating.

Answer 2

Answer:

harmful effects-

nasal congestion.

sinus pressure, which may cause facial pain.

runny nose.

useful effects-

Pollen is used to manipulate plant traits. Cross-pollination is the process of fertilization between similar plants to improve them. Creating plants resistant to pests or dehydration or increasing crop production are a few changes made through cross-pollinating.

Explanation:

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