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What could be a possible reason for the sudden fish kill in the lake with an abundance of phytoplankton?

Options

  1. AThe phytoplankton produced toxic chemicals.
  2. BThe phytoplankton depleted the oxygen in the water.
  3. CExcessive sunlight caused a harmful algal bloom.
  4. DThe lake water was too acidic for fish survival.

Correct answer

B. The phytoplankton depleted the oxygen in the water.

Step-by-step solution

Correct Option is : (B) The phytoplankton depleted the oxygen in the water.

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