What's an example of a white dwarf star?

Topographic maps are used to measure a-composition b-movement c-elevation d-texture

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

Irelanda. populationb. square mileagec. average population density per square mile