Which of the following is not an essential element?
  • a and c are true, and b, d and e are false.
  • c, d and e are true, and a and b are false.
  • a and e are true, and b, c and d are false.
  • a and b are true, and c, d and e are false.
  • a and d are true, and b, c and e are false.
Which is essential for root hair growth?
  • Zinc
  • Iodine
  • Iron
  • Manganese
The most abundant element present in plants is
  • Zn
  • Mo
  • Ca
  • S
Plants can be grown in
  • Carbon
  • Nitrogen
  • Iron
  • Manganese
Zn, Mo, Fe and Cu are
  • Either water or soil with essential nutrients
  • Water with essential nutrients
  • Soil with essential nutrients
  • Water or soil without essential nutrients
Which one of the following is not an essential element for plants?
  • Trace elements
  • Non-essential
  • Macronutrients
  • None of the above
The middle lamella mainly contains
  • Potassium
  • Magnesium
  • Calcium
  • Zinc
The macronutrients which are an essential component of all organic compounds and yet not obtained by plants from soil are
  • Zn
  • Ca
  • Mo
  • Mn
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