In plants,mineral nutrients are classified into macronutrients and micronutrients. On what basis is this classification made?

  • A
    Based on the ash obtained by burning the plant.
  • B
    Based on the quantitative requirement of the plants.
  • C
    Based on their importance in plant growth.
  • D
    Based on their presence in the soil.

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Choose the correct group of essential elements that act as components of biomolecules and are thus structural elements of cells.

The major part of the dry weight of plants is made up of ............ .

Find the odd one out with respect to critical elements.

Which one is not related to plant ash?

The major part of the dry weight of plants is composed of ......... .

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