Answer:
The Intercoastal Highway in South America is a highway that connects the western and the eastern coast of the continent, running through the countries of Peru and Brazil. The big positive of this highway is that it is connecting the eastern and western part of the continent, enabling for easier transportation of goods, and easier movement of people, which is of great economic benefit for everyone involved. On the other hand, there are also negatives, with the two biggest being the destruction of lot of tropical rainforest, and deaths of animals. In order for this highway to be built, enormous amount of trees and other vegetation have been cut down, which is always a problem. Also, the wild animals are not used to a highway running through their habitat, so they do not know how to react, very often being run over by the vehicles passing through.
Explanation:
Mount Everest. Just because it wasn't found yet doesn't mean it didn't exist.
