From which plant seeds is oil obtained?

The fleshy mesocarp of a plant is the source of palm oil,which is now in common use as an edible oil. This plant is known by the botanical name:

Petroleum-yielding plants or petro-plants belong to which family?

Which type of wheat is grown in north India and south India respectively?

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

Asafoetida is obtained from the ...... .