500
Describe the physical features of two of the following- the Amazon River, Lake Titicaca, the Atacama Desert, and Angel Falls.
The Amazon River is the world's second longest river and has more water than any other river in the world.
Lake Titicaca is the the highest lake in the world that can be used for boat travel, over 40 islands.
The Atacama Desert is one of the driest places on Earth, and only has 1/2 an inch of rainfall a year.
Angel Falls is the world's highest waterfall that drops almost 2/3 of a mile.