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Plants take in Carbon dioxide for Photosynthesis. Thus, when the earths atmorphere was rich in Carbon Dioxide, the plants evolution caused the CO2 levels to fall and the oxygen levels to rise. (Apologies. To be correct, the 2 should be just below the O, but unfortunately, I don't know how)
This made it possible for oxygen breathing animals to take to the land. (Mostly in the form of early amphibians)
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoThey changed Earth's atmosphere by taking energy from the sun to make their own food. This happened about 2.5 million years ago.
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The primary source of earths atmosphere is?
Plants
How are animals and plants adapted to where they live?
Evolution or change
How can carbon dioxide be removed from the earths atmosphere?
More green plants!
What planet has a nitrogen- oxygen atmosphere?
Earths atmosphere is rich in Oxygen, some 21% of the air is Oxygen. There is oxygen on other planets, but the percentage comes nowhere close to this. The percentage of Oxygen in earths atmosphere is thought to have been much higher in the past, before animals were about, but after the arrival of plants.
How have green plants and other organisms changed the composition of the Earths atmosphere?
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.
How did the addition of oxygen to earths atmosphere affect the evolution of life?
it made it possible 4 it to be plants animals and human life
What are the different groups of gymnosperms?
What major Change In earths climate favored THE evolution Of seed plants
Where does earths atmosphere come from?
Plants
How much do plants and animals depend on earths atmosphere?
If there were no atmosphere, there would be no plants and animals.
The primary source of earths atmosphere is?
Plants
What is the major source of oxygen for the earths atmosphere is?
Plants
What added oxygen to earths early atmosphere?
Photosynthesis by plants
How are animals and plants adapted to where they live?
Evolution or change
How can carbon dioxide be removed from the earths atmosphere?
More green plants!
What is wrong with earths atmosphere today?
Today the Earth's atmosphere is being destroyed by all the pollution by cars and power plants.
How does ice change the earths surface?
frezze plants
What is main cause of earths atmosphere changing over time to support life?
Green plants evolved adding oxygen to the atmosphere.
