Cultivation of groundnut in India is highest in

What is the medicinal utility of turmeric $(Curcuma \text{ } longa)$?

Identify the pair of alkaloids that is completely unrelated to $Rauwolfia$:
$(A)$ Reserpine
$(B)$ Ephedrine
$(C)$ Ajmaline
$(D)$ Colchicine

Which of the following cotton varieties is most suitable for hosiery products?

Silviculture is the cultivation of which of the following?

One of the plants introduced from the old world to the new world is: