The Tropic of Cancer crosses the Sahara Desert.
The Tropic of Cancer (approximately 23.5° N latitude) passes through the countries of Mexico and the Bahamas.
The Kalahari Desert and the Namib Desert are the two deserts found in Southern Africa. The Kalahari Desert is a semi-arid sandy savanna, while the Namib Desert is known for its large sand dunes, including the famous Sossusvlei dunes.
Mexico
The Tropic of Cancer crosses through the Sahara Desert, which is one of the largest deserts in the world, as well as Lake Nasser in Egypt. Lake Nasser is a vast artificial lake created by the construction of the Aswan High Dam on the Nile River. This geographic line is significant as it marks the northernmost point at which the sun can be directly overhead during the summer solstice.
Four large countries that lie mostly within the Tropic of Cancer are Mexico, Egypt, Saudi Arabia, and India.
The Tropic of Cancer is an imaginary line that circles the entire globe 23.5 degrees north of the equator. Being so large it is seldom lost.
South America is the large southern landmass of the Americas, North America and South America (Central America is usually considered part of North America).The continent is longest from north to south, with the Andes Mountains along the left (western) side. South America is actually SE of North America.
The region along the Tropic of Cancer in Africa is mainly desert, such as the Sahara, which is not conducive to large populations due to the arid climate and lack of resources like water and arable land. The harsh environment makes it difficult for people to settle, resulting in low population density in this wide belt.
Greenwich (london)
Madagascar
-- all of Canada -- almost but not quite all of the USA -- a large part of Mexico