It is the largest hot desert in the world, as well as the second l â¦ argest desert on earth after Antarctica. The Sahara covers all or part of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, Tunisia and Western Sahara.The word Sahara means desert in the Arabic language.he deserts, tropical forest, and tundra are considered to be  fragile ecosystems because of the long regeneration time when  vegetation has been destroyed. They are also fr â¦ agile because of the  low participation.
Shire US Manufacturing Inc.: ADDERALL XR, a CNS stimulant, is indicated for the treatment of attention deficit hyperactivity disorder (ADHD). (1) Children... Drug Inserts. com
AdderallÂ® is now available in an extended release version that lasts for 24 hours, called Adderall XRÂ® (an abbreviation for eXtended Release). Adderall XRÂ® is an extended-release version of the drug that only needs to be taken once daily and is only indicated for childhood and adult ADHD, not narcolepsy.