Which of the following is not an element for water usage?
a. agriculture
b. hydropower
c. turbines
d. windmills

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

Look at the map above. which of the following statement is true

What is the thickest layer of earth called?