Question

the gobi desert is an example of a desert, because it falls on the side of the himalayan mountains.

Explanation:

The Gobi desert is a rainshadow desert. Rainshadow deserts form when mountains block moisture - laden winds. The windward side of the mountains gets precipitation, and the leeward side (rainshadow side) is dry. The Himalayan mountains block moisture, and the Gobi is on the leeward (rainshadow) side.

Answer:

Rainshadow.