The correct answer is C. Oil
Explanation
The Amazon rainforest is one of the richest ecosystems of Earth, due to the biodiversity of species of animals and plants. This ecosystem is the source of many resources including water, oxygen, and medicines. Indeed, due to processes such as water, the enormous vegetation and the rainfall pattern of this place, the Amazon rainforest provides water to various sectors of the world. Also, this rainforest is abundant in medicinal plants, that have been discovered by scientists with the help of native communities. Moreover, due to the immense amount of vegetation and trees in the Amazon rainforest, it is considered the world's lung, because it is a reservoir of oxygen.
Despite this, the Amazon rainforest is not an important source of oil and does not provide oil all around the world as even though it is believed oil could be extracted from this zone. The exploitation of oil is limited in this zone due to the damage this could cause. Also, in the world other regions such as Saudi Arabia, Canada or Iran are the main sources of oil. So, the correct answer is C. Oil.
