Horn of Africa covered the Simien and Bale Mountains but melted at the beginning of the Holocene. The mountains descend in a huge escarpment to the Red Sea and more steadily to the Indian Ocean. Socotra is a small island in the Indian Ocean off the coast of Somalia. Its size is 3,600 km (1,390 sq mi) and it is a territory of Yemen. The lowlands of the Horn are generally arid in spite of their proximity to the equator. This is because the winds of the tropical monsoons that give seasonal rains to the Sahel and the Sudan blow from the west.
Languages of Africa respect are Berber (North and West Africa), Jula (western West Africa), Fulfulde (West Africa), Hausa (West Africa), Lingala (Congo), Swahili (Southeast Africa), Somali (Horn of Africa) and Arabic (North Africa and Horn of Africa). After gaining independence, many African countries, in the search for national unity, selected one language, generally the former colonial language, to be used in government and education. However, in recent years, African countries have become increasingly supportive of maintaining linguistic diversity. Language policies that are being developed nowadays are mostly aimed at multilingualism. Besides the former colonial languages of English, French, Portuguese and Spanish, the following