Suspense. It's not Gothic lit without suspense.
Tall mountain ranges prevent moisture-rich clouds from reaching areas of lee, or protected side, of the range. as air rises over the mountain, water is precipitated and the air loses its moisture content. a desert is than formed in the preside “shadow” of the range.
hope this helps :)
3x+1/5=2x-6 and subtract 2x on both sides and 2x will cancel out and whatever you get on the left side you add it to -6 and whatever that is you divide it by 3 on both sides and you will find x