World war one was primarily about, while world war two largely concerned a) land/oil b) nuclear arms/mining rights c) oil/human rights d) nationalism/race or ethnicity

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