Which river forms part of the boarder between mexico and the us

Which country is currently the most populated country in the world? a. india b. china c. mongolia d. indonesia

People make choices about how to use resources.

Which ecosystem best fits the characteristics listed below? which ecosystem best fits the characteristics listed below? ii. seasonal migrations of millions of wildebeests, zebras, and elephants iii. large numbers of predators, such as lions iv. acacia trees and grasses a. the congo rainforest b. the african mangroves c. the serengeti grasslands d. the sahel