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PIMSO 2025 - Science - Secondary 2 - National Round Question 22

PIMSO Science · PIMSO 2025 - Science - Secondary 2 - National Round

Question 22

Which of the following refers to the Profundal Zone of a lake?
  1. Portion that does not receive sunlight
  2. Portion near the surface of the water that receives sunlight
  3. Covers the area from the dry land down to the open water
  4. Portion where decomposition by bacteria takes place aerobically or anaerobically