A ballon rises from rest with a constant acceleration g/8. A stone is released from it when it has risen to height h.The time taken by the stone to reach the ground is
Options […]
One of the most important function of botanical gardens is that
Options
(a) one can observe tropical plants there (b) they allow ex situ conservation of germplasm (c) they provide the natural habitat for wildlife (d) […]
Which one of the following elements is not an essential micro-nutrient for plant growth?
Options
(a) Zn (b) Cu (c) Ca (d) Mn
Correct Answer:
Ca
Explanation:
Essential micro elements are Fe, Mn, Zn, […]
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