Pollution Effects · Botany

What is a likely effect of oil pollution on aquatic plants?

  1. Increasing seed germination in all submerged plants
  2. Improving root absorption of minerals
  3. Converting water plants into terrestrial plants
  4. Blocking light and interfering with gas exchange
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Correct answer: Blocking light and interfering with gas exchange

Oil films on water can block sunlight and reduce gas exchange at the water surface. This can harm aquatic plants, algae, and other organisms dependent on oxygen and light.

Difficulty: Medium Question 10 of 20

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