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.
One of the most famous deserts in the world is the Sahara (meaning 'greatest desert' in Arabic) and it is in fact the biggest classical desert in the world, apart from the above mentioned Antarctic and Arctic deserts.There is also a difference in types of deserts.he Sonoran desert is one of the largest and hottest deserts in the Americas and it covers the southeast of California and the southwest of Arizona in the US, and the northhwest Mexican states of Sonora, Baja California, and Baja California Sur. To the north of this 'low desert' is the 'high desert' Mojave.