Question

difference between gas phase sources and desoeption sources in mass spectrometry

Answer 1

The Thar desert which lays in between the plains of Indus Valley and the Ganges has also greatly effected the course of the Indian history. As the Thar desert separates these two regions into two different units, the Indian Defence was rendered weak. This greatly benefited the foreign invaders who came to India through the north-western mountain passes.

As the bulk of the Indian regions were separated through this region by the great desert, the resources of northern India could not be fully pooled up against the foreign invaders. In view of the limited resistance offered to them the invaders won a num­ber of decisive victories and reached as far as Delhi.