There all correct...........
Answer:
Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy
Explanation:
Based on the given choices above, Lake powell is the is part of the smallest percentage of freshwater. Lake powell is a reservoir on the colorado river which is locarted along rainbow bridge of Utah. COmpare to the other choices which has a vast percentage of freshwater.
