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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.
Could humans survive on Earth over two-and-a-half billion years ago before the emergence of plants Why or why not?
No, humans could not have survived on Earth over two-and-a-half billion years ago as the atmosphere at that time was not conducive to supporting human life, lacking essential elements such as oxygen. Additionally, without the presence of plants to produce oxygen through photosynthesis, humans would not have had a sustainable source of breathable air.
In what way did change the atmosphere of earth?
The atmosphere of Earth changed over millions of years due to volcanic activity releasing gases, the development of photosynthetic organisms producing oxygen, and the evolution of plants that further increased oxygen levels and reduced carbon dioxide. These changes led to the composition of the atmosphere we have today with a balance of gases crucial for supporting life.
How has the earths atmosphere changed over millions of years?
The earth's atmosphere has changed significantly over millions of years due to various factors such as volcanic activity, changes in the Earth's orbit, and the evolution of living organisms. For example, early Earth had a different composition with high levels of carbon dioxide and little oxygen. Over time, the atmosphere changed to its current composition with nitrogen as the dominant gas and oxygen supporting life.
How the amount of oxygen in the atmosphere gradually increased?
The amount of oxygen in Earth's atmosphere increased gradually over millions of years due to the process of photosynthesis by early bacteria and later by plants. These organisms released oxygen as a byproduct, which accumulated in the atmosphere and changed its composition over time. This process, known as the Great Oxidation Event, occurred around 2.4 billion years ago and significantly increased the amount of oxygen in the atmosphere.
How have humans changed the atmosphere of the plant in the past years?
They have increased the levels of the greenhouse gases.(Apex)
How have humans changed the atmosphere of the planted in the past 200 years?
They have increased the levels of the greenhouse gases.(Apex)
How has life changed for humans in the past 300 years?
how has life changed in the last 300 years
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.
Could humans survive on Earth over two-and-a-half billion years ago before the emergence of plants Why or why not?
No, humans could not have survived on Earth over two-and-a-half billion years ago as the atmosphere at that time was not conducive to supporting human life, lacking essential elements such as oxygen. Additionally, without the presence of plants to produce oxygen through photosynthesis, humans would not have had a sustainable source of breathable air.
How have cinemas and theatres changed in the last 20 years?
the seating has changed the atmosphere & everything that you see now was all different back then
How humans change the atmosphere of the planet in the past 200 years?
They have increased the levels of greenhouse gases.
Why do plants survive without humans?
Plants grew for millions and millions of years with no humans at all. Much, much later, humans learned to grow bigger and better plants for food . . . the tradeoff was that these better plants like wheat, rice, and strawberries became dependent on humans for water, fertilizer, and other care. But plants in general are similar to what they have always been, and are self-reliant.
In what way did change the atmosphere of earth?
The atmosphere of Earth changed over millions of years due to volcanic activity releasing gases, the development of photosynthetic organisms producing oxygen, and the evolution of plants that further increased oxygen levels and reduced carbon dioxide. These changes led to the composition of the atmosphere we have today with a balance of gases crucial for supporting life.
What changed your formerly poisonous atmosphere into an oxygen rich atmosphere?
The development of photosynthetic organisms, such as cyanobacteria and plants, played a significant role in changing Earth's atmosphere to oxygen-rich. These organisms released oxygen as a byproduct of photosynthesis, gradually increasing the oxygen levels in the atmosphere over millions of years.
How has the earths atmosphere changed over millions of years?
The earth's atmosphere has changed significantly over millions of years due to various factors such as volcanic activity, changes in the Earth's orbit, and the evolution of living organisms. For example, early Earth had a different composition with high levels of carbon dioxide and little oxygen. Over time, the atmosphere changed to its current composition with nitrogen as the dominant gas and oxygen supporting life.
How the amount of oxygen in the atmosphere gradually increased?
The amount of oxygen in Earth's atmosphere increased gradually over millions of years due to the process of photosynthesis by early bacteria and later by plants. These organisms released oxygen as a byproduct, which accumulated in the atmosphere and changed its composition over time. This process, known as the Great Oxidation Event, occurred around 2.4 billion years ago and significantly increased the amount of oxygen in the atmosphere.
