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How have green plants and other organisms changed the composition of the Earths atmosphere?
Wiki User
∙ 14y ago
Hugely. Before the evolution of the first organisms capable of photosynthesis around 3 billion years ago, the atmosphere of the early earth contained almost no Oxygen. By the conversion of Carbon Dioxide and Water into organic compounds and Oxygen through photosynthesis, cyanobacteria, and later algae and plants, have raised Oxygen levels to around 21% of the atmosphere today. Without this high level of Oxygen, the huge diversity of multi-cellular life depending on Oxygen for aerobic respiration would not exist.
Wiki User
∙ 14y ago
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What caused a major change in the composition of Earths atmosphere?
The appearance of photosynthetic organisms
How does the composition of earths atmosphere differ from the composition of the atmosphere of the gas giant planets?
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
How did earths atmosphere change?
Earths atmosphere has changed in a few ways. It contains more pollutants and carbon dioxide which is a greenhouse gas.
Earths early atmosphere was changed dramatically by the evolution of?
photosynthesis
Why have the levels of carbon dioxide changed since the early earths atmosphere?
The atmosphere has changed because of population increases and lots of factories that produce the gas. Olivia Perli
What caused a major change in the composition of Earths atmosphere?
The appearance of photosynthetic organisms
Why is earths composition of earths atmosphere important?
The Chemical Composition of the Earth's atmosphere is important because it holds the Earth together.
How does the composition of Earths atmosphere different from the composition of the atmosphere of the gas giants planets?
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
How does the composition of earths atmosphere differ from the composition of the atmosphere of the gas giant planets?
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
Why is chemical composition of earths atmosphere important?
The Chemical Composition of the Earth's atmosphere is important because it holds the Earth together.
How does the composition of earths atmosphere differ from the composition of the atmospheres of the gas giant planets?
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
How does the composition of earths atmosphere differ from the composition of the atmospheres of the gas giants planets?
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
Earths atmosphere was first changed by?
photosynthesis
How did earths atmosphere change?
Earths atmosphere has changed in a few ways. It contains more pollutants and carbon dioxide which is a greenhouse gas.
Earths early atmosphere was changed dramatically by the evolution of?
photosynthesis
When did the chemical composition of earths atmosphere reach that of today?
It reach when your mother had sucked your dads dick
How does the compositions of earths atmosphere differ from the composition of the atmospheres of the gas giant planets?
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
