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4.5 billion years ago the earth was a molten ball surrounded by hydrogen and helium.
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∙ 7y ago
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What gases are in air?
78% Nitrogen, 21% Oxygen, 1% trace gases
What is air made up of?
air is made up of some gases. i.e. it's made up of hydrogen, nitrogen, and mixture of other gases. but the most common is it is made up of nitrogen-78%, oxygen-21%, and other gases-1%air is made up of different gases such as oxygen, carbondioxide, nitrogen and noble gases.
What are two the most common gasses found in air and what are their percentages?
Gases in air are nitrogen about 79%, oxygen about 20% and other gases 1%
How are gases used in real life?
in burning things, to breath in air etc.
What is the term for a person with assets over 1000 million dollars?
billion air
How would such air be similar from 3.6 billion years ago than the air you breathe today?
it would still be smoggy
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.
How would such air be different from 3.6 billion years ago than the air you breathe today?
The air would be different because it would contain less oxygen than the air we breathe today
How did earth come to have an oxygen rich atmosphere?
Algae activity
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 was not in the air on earth 3.6 billion years ago?
Oxygen was not present in large amounts in the early atmosphere of Earth.
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.
How do scientists know that there is more carbon dioxide and other greenhouse gases in the air than there was thousands of years ago?
They know because they can work out what percentages of which gas were around through ice samples taken from Antarctica
How does the atmosphere composition today compare with the air 1000 years ago?
1000 years ago the air was much the same as it is today, with a little less CO2 and a little less pollution.
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.
What gases pollute air?
What gases cause air pollution
What flying transport did people use years ago?
Air planes
