Have become what? Please complete your question if you expect an answer.
Deserts are arid, not semiarid. Most semiarid regions are grasslands. They are found in Africa, North America, South America and other areas.
there is a desert in north America
South Dakota has some semiarid land but no true desert.
No The sahara desert is not in North America The sahara desert is not in South America.
The largest desert in North America is the Chihuahuan Desert of the United States and Mexico.
The Great Basin Desert is generally considered to be the largest desert in North America.
Sonoran Desert is the desert in North America which has Cacti.
The two largest deserts in North America are the Great Basin Desert, followed by the Chihauhaun Desert.
No The sahara desert is not in North America The sahara desert is not in South America.
The Chihuahuan Desert is in North America - Mexico and the United States.
The largest desert is the Great Basin Desert, which is about 42,000 km2 larger than the second largest, the Chihauhaun Desert.The largest desert in North America is the Great Basin Desert.The Chihuahuan Desert is the largest desert in North America.
the Colorado desert is in north America