The Amazon rainforest in South America is known as the “Lungs of the Earth” for a reason! It is because the Amazon rainforest produces over 20% of the Earth’s Oxygen! Oxygen or O2 is an element found in the universe. Humans need Oxygen to survive. Oxygen is in our atmosphere and the air that we breathe. Oxygen helps the animals on this planet survive. All of this Oxygen produced by the Amazon rainforest is due to the millions of plants and trees in the area. Those trees and plants do photosynthesis, which releases Oxygen gas into the air. That Oxygen is then used by the other living things on Earth! The miles of vegetation in the Amazon rainforest makes it produce over 20% of the Earth’s Oxygen!!