Question

Which of these BEST describes the effect that the Andes Mountains have on the climate of South America?
A) The climate along the Andes Mountains changes according to elevation.
B) The Andes form a barrier against high pressure air flowing off the Pacific.
C) Some of the snowiest points in South America are found in the Andes Mountains.
D) Cold ocean currents in the Pacific affect the climate of western countries such as Chile.

Answer 1

I’m not sure but I think the answer is A.

Answer 2

The statement that best describes the effect that the Andes Mountains have on the climate of South America is A: The climate along the Andes Mountains changes according to elevation.

The Andes is the largest mountain chain in the world, located along the western edge of South America with peaks up to 6000 meters high, and separated by intermediate depressions.  

It is due to its extention, its height and its proximity to the sea that it works as a climate regulator, blocking the air flowing from the Pacific and, thus, the rain, creating a wet enviroment on the west slope and a more arid enviroment on the east.

In addition, temperature, atmospheric pressure and humidity decrease in higher elevations, creating different sub-climates.

Taking this into account, The Andes can be divided into three sections: Tropical Andes (north), Dry Andes (centre), and Wet Andes (south).