Answer:
Step-by-step explanation:
1.Tibesti Mountains: located in the central Sahara desert, covering parts of Chad and Libya, this volcanic highland is one of the most prominent geological features in the region.
2.Cameroon Volcanic Line: stretching from the Gulf of Guinea in the west to the Cameroon Highlands in the east, this volcanic range includes a number of peaks such as Mount Cameroon, the highest point in West Africa.
3.Hoggar Mountains: situated in southern Algeria, the Hoggar Mountains are a volcanic highland known for their dramatic landscapes and rock formations, including the famous "Tassili n'Ajjer" plateau.