About 60% of our oxygen is produced by phytoplakton.
Pine trees produce approximately 260 pounds of oxygen per year.
35 percent
About 20%
The Amazon produces up to 25 - 30% of the world's oxygen.
Grass produces about half of the oxygen we breathe in a day.
The percentage of oxygen in water, vapors or ice is the same.
depends on how big the tree is the bigger the more oxygen it produces.
About 2% of the Earth's oxygen it produces.
There are very few plants in the Atacama so it produces next to no oxygen.
Grass produces about half of the world's oxygen through photosynthesis.
Generally, an acre of forest can produce one to two cords each year, in most parts of the United States. There is a lot of variation, depending on climate, the types of trees, and forest management.