What are the primary statistics used to study population change, and what is the purpose of each

Explain the cause for movement river valley civilization to early industrial centers

Do larger countries receive more money in remittances than smaller countries

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