Q22 / 180 · JIPMER 2019 · Botany

Eutrophication is caused due to

  • Correct answer
    A
    accumulation of minerals
  • B
    effect of UV-C
  • C
    accumulation of metals only
  • D
    accumulation of zooplankton

Solution

Eutrophication is caused due to accumulation of minerals in water body. It is the process of natural ageing of lakes by the biological enrichment of its water. In a young lake, the water is clear, supporting little life with time due to the introduction of nutrients such as nitrogen and phosphorus, growth of microorganism which deteriorate the water quality take place depleting the dissolved $\mathrm{O}_2$ in water.

Hence, the correct answer is option: 'A'.

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