3. Free electives: Free electives are courses in addition to the Core Curriculum and major requirements sufficient to reach a minimum of 120 credit hours for graduation. Students may graduate with more but not less than 120 credit hours.
The four major North American deserts of this type are the Chihuahuan, Sonoran, Mojave and Great Basin. Others outside the U.S. include the Southern Asian realm, Neotropical (South and Central America), Ethiopian (Africa) and Australian. The seasons are generally warm throughout the year and very hot in the summer.
Some of the world's largest deserts are cold deserts located at one of the Earths poles or in a cold area of the world. One thing is for sure, deserts are dry and barren places. Go here for more information on the desert habitat.alahari Desert. The Kalahari Desert is located in Southern Africa. Like many deserts, it has large temperature swings, with temperatures dropping to zero at night and then rising to above 40 degrees C (104 degrees F) in the day.