In Pakistan there is general deficiency of rainfall. It varies from 125 mm annually in upper Sindh to about 900 mm in the sub-mountainous of northern Pakistan. In Balochistan the mean annual rainfall is about 200 mm, diminishing to ________ mm in the desert of Kharan:
Correct answer: C
Explanation
The Kharan Desert in Balochistan is one of the driest regions in Pakistan, with annual rainfall typically reported as less than 50 mm.