This statement would be more or less correct I would say.
Nationalism inded did develop strongly in the 19th century, and also in a lot of cases led into the development of nation states. At the same time, powerful empires that existed in those times had often many different ethnic and political groups in their borders. All of these factors often led to different wars that were quite horrible.
I believe the answer is: <span>is usually intense
Desert is located in region with low elevation. The little to no rainfall that they get is happened because the flow of water that come to its way is blocked by objects (such as mountain) in higher elevation.
If, they had a rainfall, the water carrying cloud must be big enough to be blocked by mountains and yet still pass through, which resulted in intense rainfall.</span>
