Mountains also play a roll in forming deserts. A rain soaked wind could be strolling along, planning a day in the desert, when WHAM! a big old mountain jumps in front them. Then the angry cloud might say, "Where the heck did that mouintain come from?" Being really mad, the cloud will drop all of his rain in order to get over the mountain, where he can raise a big windstorm in the desert. A good place to find plenty of mountains jumping up in front of innocent clouds is by the Himalayas. A cloud trying to visit his relatives in Mongolia might run into the Himalayas. Being a very angry cloud, he would drop all of his rain right on India, leaving everything behind the Himalayas, like the Gobi desert dry.