What is the place of origin of the potato?

What are multipurpose trees? Give the botanical and local names of any two multipurpose trees known to you and list their uses.

$Rauwolfia$ $serpentina$, which belongs to the family $Apocynaceae$, yields medicine for:

Which of the following oils are called fixed oils?

Catechu is obtained from the

Which of the following is a pulse crop?