4:- The Africa continent.
The continent of Africa is the 2nd largest in terms of area and population. Its approximate area is 3 crore sq. Km. and its population is about 120 crores.GDP (in billion-dollar) of Nigeria is approximately 465, Egypt is approximately 375, South Africa is approximately 320, Algeria is approximately 150, Morocco is approximately 100.
Africa has a variety of languages in which the most widely spoken are English, Zulu, Swahili, French, and Arabic.

Rohit shukla is a UPSC aspirant. He has a keen interest in the field of geography which is his optional subject in UPSC.
Tavish Sharma has a master’s in computer application. He is a freelance website designer and developer.