389 milliliters of a solution of acid and water. If 16.5 of the solution is acid, how many milliliters of acid are there? Round your answer to the nearest tenth.

What border separates sonora and chihuahua national border state border physical boundary natural boundary

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

Where the main factor that enabled the growth of cities and civilizations was the existence of