No, The Amazon Rainforest Doesn't Produce 20% Of The World's Oxygen

The video addresses the misconception that the Amazon rainforest produces 20% of the world's oxygen. It clarifies that while the Amazon is crucial for biodiversity and climate regulation, it does not significantly impact global oxygen levels. Most oxygen comes from oceanic photosynthesis, and the oxygen produced by rainforests is balanced by consumption through decomposition. The video emphasizes the real concerns of deforestation and forest fires, which harm ecosystems and increase CO2 levels, but do not threaten oxygen supply.

Why is the Amazon rainforest often called the 'lungs of the world'?

• Due to its role in regulating the Earth's temperature

• Because it is home to diverse wildlife

• Due to the misconception that it produces 20% of the world's oxygen

• Because it is the largest forest in the world

Where does most of the oxygen we breathe originate from?

• Mountain forests

• Desert plants

• The Amazon rainforest

• The oceans

What role do microbes play in the oxygen cycle in rainforests?

• They have no role in the oxygen cycle

• They increase oxygen levels by breaking down CO2

• They consume oxygen by decomposing dead plant material

• They produce oxygen

How much of the world's oxygen would be consumed if all organic matter on Earth were burned at once?

• 50%

• 20%

• 10%

• Less than 1%

What is a major environmental concern related to the Amazon fires?

• Destruction of ecosystems and increase in CO2 levels

• Depletion of the world's oxygen supply

• Loss of biodiversity in oceans

• Increase in global temperatures