Which of the following elements is not required by plants for their normal healthy growth?

  • A
    Calcium
  • B
    Magnesium
  • C
    Lead
  • D
    Iron

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Which of the following elements primarily constitute the dry weight of plants?

Which of the following elements is radioactive and is found in plants growing near nuclear test sites?

Which element is required by plants in large quantities?

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

The number of essential elements required for the normal growth of plants is

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