Multiple choice

In oak, pollination is facilitated mainly by

  1. birds

  2. droplets of rain

  3. insects

  4. wind

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Oak trees are wind-pollinated (anemophilous). They produce inconspicuous flowers with copious, lightweight pollen grains adapted for wind dispersal. Oak pollen is a common allergen because it's wind-borne. Wind pollination is the primary mechanism, not insects, birds, or rain droplets.