Name the sparsely populated regions of the world.

The sparsely populated regions of the world are-

1. The hot deserts like Sahara and Kalahari of Africa, the Arabian desert and Thar desert of Asia, Atacama and Patagonia desert of South America, Great Australian desert and Arizona desert of USA and arid areas of Western Mexico.
2. The cold deserts of Central Asia, the Gobi and Takla Makan desert, a portion of Ladakh in India.
3. Cold polar regions of Arctic in North America, Eurasia and Antarctica
4. The dense Equatorial Rainforests of the Amazon and Zaire basin.