Answer:
384,400 km
Radius: 1,737
The Mississippi-Missouri-Ohio river system is the largest and most significant river system in the world.
They allow you to see how the continents were once placed together.
The tilt of the Earths axis can affect where the Suns rays hit the Earth. If the northern hemisphere tilts slightly more than the southern hemisphere, the northern hemisphere is facing the sun more often, this is known as "Summer" for people in the north, and "Winter" for people in the south. Im not sure if that answered your question, but the suns rays bounce off the Earths surface and clouds and sometimes hit each other in our atmosphere.
According to the World Resources Institute, the most notable places of deforestation occur in the Amazon and the Congo. Forests cover roughly 30% of the earth. It happens all around the world, like places in Canada, the Ivory Coast, Indonesia, and the United States.
So I guess your answer would be the Amazon and the Congo.... Hope this helped:)