Multiple choice

The sea water gets pollution mainly due to�

  1. Industrial waste

  2. Oil spills

  3. Death of marine fauna

  4. None of these

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

Oil spills are major sources of marine pollution, creating slicks that harm marine life, damage ecosystems, and persist for years. Oil coats marine animals, prevents oxygen exchange, and introduces toxic hydrocarbons into the food chain.