What is true of rain which falls on deserts?
it evaporates quickly because of the dry air.
most deserts receive over 30 inches.
it runs off the ground.
it soaks deep into parched ground.

It evaporates quickly because of the dry air. since there is not much oxygen in the atmosphere and on the ground the water will evaporate or soaking into the ground for plants and other life in these dry places very quickly.

Answer they are produced by collision of tectonic plates;

This could be considered an example of astrology.