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How was oxygen added to the earths atmosphere?
Oxygen was added to Earth's atmosphere through the process of photosynthesis by early photosynthetic organisms like cyanobacteria. These organisms released oxygen as a byproduct, which accumulated over millions of years and eventually led to the oxygen-rich atmosphere we have today.
Which organisms do scientists estimate more than 50 percent of the oxygen in earths atmosphere?
Scientists estimate that more than 50 percent of the oxygen in Earth's atmosphere is produced by phytoplankton in the ocean through photosynthesis. Phytoplankton are microscopic marine organisms that play a crucial role in the global oxygen cycle.
How did oxygen accumulate in the atmosphere?
Oxygen accumulated in Earth's atmosphere through the process of photosynthesis carried out by early cyanobacteria. These organisms released oxygen as a byproduct, gradually building up oxygen levels in the atmosphere over millions of years.
What is the approximate percent of oxygen by volume present earths lower atmosphere?
Oxygen makes up about 21% of Earth's lower atmosphere by volume.
WHAT IS THEAPPROXIMANT PERCENT OF OXYGEN BY VOLUME PRESENT IN EARTHS LOWER ATMOSPHERE?
The approximate percentage of oxygen in Earth's lower atmosphere is around 21% by volume.
How was oxygen added to the earths atmosphere?
Oxygen was added to Earth's atmosphere through the process of photosynthesis by early photosynthetic organisms like cyanobacteria. These organisms released oxygen as a byproduct, which accumulated over millions of years and eventually led to the oxygen-rich atmosphere we have today.
How much of the earths atmosphere is made up of nitrogen and oxygen?
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
Which organisms do scientists estimate more than 50 percent of the oxygen in earths atmosphere?
Scientists estimate that more than 50 percent of the oxygen in Earth's atmosphere is produced by phytoplankton in the ocean through photosynthesis. Phytoplankton are microscopic marine organisms that play a crucial role in the global oxygen cycle.
What percent of earths atmosphere is oxygen?
97%
Is most of the earths atmosphere covered with oxygen?
no
What do scientist think was the source of the oxygen in earths atmosphere?
It came from primitive organisms early in earth's history. They were the first organisms to use photosynthesis to make food, by using light to convert Carbon dioxide and water into glucose (food) and oxygen. Since oxygen is a waste product of photosynthesis, it was released into the air. As more and more of these organisms multiplied, large amounts of oxygen were released into the air, forming today's atmosphere.
The primative earths atmosphere did not contain?
Free oxygen
The primitave earths atmosphere did not contain?
Oxygen gas
What is the major source of oxygen for the earths atmosphere is?
Plants
What gas was not part of early earths atmosphere?
oxygen
How did oxygen accumulate in the atmosphere?
Oxygen accumulated in Earth's atmosphere through the process of photosynthesis carried out by early cyanobacteria. These organisms released oxygen as a byproduct, gradually building up oxygen levels in the atmosphere over millions of years.
What describes the earths atmosphere?
mostly nitrogen with 21% oxygen
