Which of the following bodies of water is noted for being one of the world’s largest irrigation systems?
a.
the caspian sea
b.
lake balkhash
c.
the kyzylkum canal
d.
the karakum canal

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