Pastoralists were found in plateaus, plains, and deserts.

Pastoralism is an economic system in which people rely primarily on the herding of domesticated animals for their livelihood. Pastoralists are nomadic or semi-nomadic and move with their herds in search of grazing land and water sources. They have adapted to various geographical regions, including plateaus, plains, and deserts.

Plateaus:
- Plateaus are elevated flat areas of land with steep sides.
- Pastoralists are found in many plateaus around the world, such as the Tibetan Plateau in Asia, the Deccan Plateau in India, and the Colorado Plateau in the United States.
- Plateaus provide favorable conditions for grazing animals as they often have vast grasslands and moderate climatic conditions.
- Pastoralists in plateaus rear animals like sheep, goats, yaks, and horses, as these animals are well-adapted to the altitude and climate of plateaus.

Plains:
- Plains are flat or gently sloping areas of land without significant elevation changes.
- Pastoralists are commonly found in plains regions, such as the Eurasian Steppe, the African savannahs, and the Great Plains of North America.
- Plains offer extensive grasslands, which are ideal for grazing animals like cattle, sheep, and horses.
- The open landscape of plains allows for easy movement of herds and provides access to water sources like rivers and lakes.

Deserts:
- Deserts are arid regions with very little rainfall and sparse vegetation.
- Pastoralists can also be found in desert regions like the Sahara Desert in Africa, the Arabian Desert in the Middle East, and the Gobi Desert in Asia.
- Despite the harsh conditions, some desert plants can provide limited grazing opportunities for animals.
- Pastoralists in deserts often rear camels, which are well-suited to the arid climate and can survive without water for extended periods.

Conclusion:
Pastoralists have adapted to diverse geographical regions, including plateaus, plains, and deserts, depending on the availability of suitable grazing land and water sources for their herds. Their nomadic or semi-nomadic lifestyle allows them to move with their animals in search of favorable conditions, ensuring their survival and livelihood.