Answer:
At the top theres less air and a higher elivation
Explanation:
The earth's basin and range topography is a result of: c. vertical movement along faults.
the result of basin and range topography also called extensional tectonics.
hope this help
Muslim traders connected European and North African merchants with the Far East and Asian trade routes. They often traded spices, silk, and cotton textiles. They also traded ideas, including advanced mathematics, chess, and Arabic numerals. The Arabic language and the Islamic faith spread rapidly in North Africa.