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Which gas was not present on earth at its formation 4.6 billion years ago out of methane water vapour oxygen and nitrogen?
When the earth was formed, volcanoes were commonplace. These volcanoes released water vapor into the air, and produced gases filled with nitrogen, hydrogen, and carbon. The planet's atmosphere consisted of these gases and at the time, there was no free oxygen.
What was the first air breathing animal?
The first air-breathing animal is believed to be the lungfish, dating back to around 400 million years ago. Lungfish have both gills and a primitive lung, allowing them to breathe air when necessary. This adaptation was crucial for early vertebrates transitioning from aquatic to terrestrial environments.
How did the universe begin for kids?
The universe began about 13.8 billion years ago with a huge explosion called the Big Bang. At that moment, everything was packed into a tiny point, and then it expanded very quickly, spreading out energy and matter. As it cooled down, stars and galaxies formed, creating the amazing universe we see today. It's like a balloon getting bigger and bigger as you blow air into it!
How does the air move around the earth?
The air moves around the earth as a result of pressure difference.
What happens when the earth loses air for a few seconds?
The Earth doesn't lose air, even for a few seconds.
What were the gases in the air 4.5 billion years ago?
4.5 billion years ago the earth was a molten ball surrounded by hydrogen and helium.
Was there carbon dioxide in the air when the earth was young?
In the very young earth the atmos. was mostly carbon dioxide. This caused the earth to have a very warm atmosphere. There was no life at that time on earth. It was a few billion years ago.
How would such air be similar from 3.6 billion years ago than the air you breathe today?
it would still be smoggy
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.
What were the 4 elements years ago?
the four elements were Earth, air, fire, and water.
How would such air be different from 3.6 billion years ago than the air you breathe today?
The air 3.6 billion years ago would have contained very little oxygen, mostly consisting of carbon dioxide, nitrogen, and water vapor. Today, Earth's atmosphere has significantly more oxygen due to the process of photosynthesis by plants and cyanobacteria. Additionally, the presence of pollutants and greenhouse gases in the air today is much higher compared to that ancient time.
How did earth come to have an oxygen rich atmosphere?
Algae activity
Did Earth form 4.6 billion years ago?
Current Scientific Theories indicate that the Earth was formed 4.6 billion years ago by the various rocks and other materials that expanded after the Big Bang, and likely other Cosmic Materials that contributed to the formation of other planets. Asteroids were common, and each time they hit what would be the Earth, the cycle of "cooling down" the crust was interrupted, but the total mass of the Earth would grow. [Think of it like mashing two pieces of clay together and rolling them into a ball, and how the ball consistently grows every time in size] Until eventually the activity likely settled, or the period was long enough without large asteroids or collisions with large planetary bodies. Comets and general weathering and presentation of chemicals into the environment produced the gases of the atmosphere, plant life logically forming first and transforming CO2 into Air, thus allowing for the evolution of life from sea-based to land-based. More formations, as well as the theory of plate tectonics, would give the earth its current shape.
Which gas was not present on earth at its formation 4.6 billion years ago out of methane water vapour oxygen and nitrogen?
When the earth was formed, volcanoes were commonplace. These volcanoes released water vapor into the air, and produced gases filled with nitrogen, hydrogen, and carbon. The planet's atmosphere consisted of these gases and at the time, there was no free oxygen.
When should the earth be moved out of its orbit?
In approx 7 billion years because the expanding Sun will swallow planet earth in about 8 billion years, by then all of the air & water should be pumped underground & humanity will be living underground on planet earth because if water & air remained on the surface of the earth it would evapourate out into space due to the heat of the expanding sun. It will take 6.24x10^17 Megatons of TNT to move the earth out of its orbit.
What was in the air 1 million years ago?
The air 1 million years ago was pretty much the same as it is now.
What is the oldest form of air pollution?
Oxygen, produced by the first blue-algae about 3 billion years ago. It poisoned much of the other kinds of life around at the time.
