Assertion: Very little agriculture is possible in Ladakh since this region does not receive any rain and is covered in snow for a large part of the year.
Reasoning: Ladakh is a cold desert.

Both A and R are correct and R is the correct explanation of A.

Ladakh is a desert in the mountains in the east of Jammu and Kashmir. Very little agriculture is possible here since this region does not receive any rain and is covered in snow for a large part of the year. There are very few trees that can grow in the region. For drinking water, people depend on the melting snow during the summer months