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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.
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Hypothesized to be the early source of free oxygen in Earth's atmosphere?
Cyanobacteria are hypothesized to be the early source of free oxygen in Earth's atmosphere through the process of photosynthesis. They evolved around 2.7 billion years ago and played a key role in the Great Oxidation Event, gradually increasing the levels of oxygen in the atmosphere.
Do trees provide the most oxygen for the atmosphere?
While trees play a significant role in producing oxygen, they are not the sole source. Phytoplankton, algae, and other plants also contribute to oxygen production in the atmosphere through photosynthesis. Overall, terrestrial and aquatic ecosystems collectively contribute to the oxygen balance in the atmosphere.
Why does a candle not burn on the surface of the moon?
for combustion to take place there has to be heat, oxygen and a fuel. On the moon there is a fuel (wick of the candle) and heat(your fire source) but no oxygen as there is no atmosphere which makes combustion (burning) impossible.
Why does a space shuttle carry its own supply of oxygen?
A space shuttle carries its own supply of oxygen to sustain the astronauts' breathing when they are in space where there is no atmosphere. It ensures they have a continuous source of oxygen for respiration during the mission.
How does oxygen get replenished in the air?
Plants and other photosynthetic organisms in the process of making glucose (their food) from carbon dioxide and water (using light as the energy source) release the highly toxic waste product of this process called oxygen into the atmosphere.
What is the major source of oxygen for the earths atmosphere is?
Plants
How did bacteria change early earths atmosphere?
Earth's early atmosphere was primarily composed of carbon dioxide. Early bacteria used carbon dioxide as a source of fuel and as a result produced oxygen.
What produced oxygen in earths atmosphere?
Oxygen in Earth's atmosphere was produced through the process of photosynthesis by cyanobacteria and early algae, starting around 2.5 billion years ago. These organisms converted carbon dioxide and water into glucose and oxygen using sunlight as an energy source. This oxygen began accumulating in the atmosphere and eventually led to the development of the oxygen-rich atmosphere we have today.
What is the source of radiation for both the earths atmosphere the greenhouse?
The sun.
What is the source of radiation for both the earths atmosphere and greenhouse?
The sun.
What is the most aboundant element in earths atmosphere?
I! think the most aboundant element on earth should be oxygen, because it is the only source of life through which we breath in.
How does the light reaction of photosynthesis affect the earths supply of oxygen?
Photosynthesis is the source of virtually all the free oxygen in the earth's atmosphere.
What effect does photosynthesis have on the amount of oxygen in the atmosphere?
Photosynthesis is the source of virtually all the free oxygen in the earth's atmosphere.
What is the source of the oxygen that plants give off as oxygen gas?
The oxygen in water is the oxygen that is released into the atmosphere.
Which atmosphere gas is photosynthesis the major source of?
Oxygen is the major source of photosynthesis in the atmosphere. During photosynthesis, plants and other photosynthetic organisms convert carbon dioxide into oxygen through the process of photosynthesis. This oxygen is then released into the air, replenishing the levels in the atmosphere.
The primary source of oxygen for the earth's atmosphere?
The primary source of oxygen in Earth's atmosphere comes from photosynthesis by plants, algae, and some bacteria. During this process, these organisms use sunlight to convert carbon dioxide and water into oxygen and glucose. This oxygen is then released into the atmosphere as a byproduct.
What is the major source of free oxygen in atmosphere?
Green Plants
