Which of the following ecosystems is located in a semiarid climate region, is prone to drought, and is a transition zone between a desert area and a tropical grassland? a. the serengeti b. a mangrove c. the congo rainforest d. the sahel

Trade routes emerged along which coast when arab and indian traders from around the indian ocean mixed with the bantu people from africa's interior? a. swahili coast b. guinea coast c. drakensberg coast d. namib coast

Which of the following best describes brazil's economy from 1650-1880? a. it gradually shifted to manufacturing as the industrial revolution progressed. b. it was based on mining. c. it was based on plantation agriculture, where slaves served as a labor force. d. it was based on small, family-owned farms.

From the standpoint of geography, a is an internal rendering of an individual's known world