1. the southern border of the sahara desert is known as the "" sahel kalahari savannah oasis 2. the desert is found in the southern portion of africa. gobi kalahari namib sahara 3. the highest peak in africa is k2 mount everest the matterhorn mount kilimanjaro

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory