What are an example of push factors and pull factors?

As water is cooled from 4 c to 0 c its density

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

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