South America is a continent that has a variety of climates, but the predominant one is the tropical climate.
The tropical climates are climates that appear on and in close proximity tot he Equator, and they are not monotone, but instead differ from one another. From the tropical climates that dominate the South American continent, the most widespread are the tropical rainforest and the tropical grasslands, which account for most of the tropical climates, with the tropical semiarid and tropical arid climates occupying much smaller areas on the continent, mostly alongside the Pacific coastline.
The Amazon rainforest is the trademark of South America, and it is the biggest tropical rainforest in the world, occupying huge portion of the northern half of the continent, with the tropical grasslands occupying large ares both north and south of the Amazon.