0
Prehistory is any time before there were written records. That is generally considered to be anything beyond 20,000 years ago, even though writing itself is a little more recent yet.
In the past 800,000 years ice core records show CO2 levels barely dipped above 280 ppm once, during a warm spell about 300,000 years ago. We have other evidence indicating CO2 levels have not exceeded 300 ppm in the past 20 million years, up until 1950. Since 1700 CO2 has been steadily increasing as a result of human activity.
What else can I help you with?
Is The atmosphere stores much more carbon dioxide than the oceans?
False.
How much carbon in metric tons is stored in the atmosphere?
Most of carbon in the atmosphere is in the form of CO2. At nearly 400 ppm, that pencils out to 3 trillion tonnes (metric tons). To single out how much of that is carbon we need to multiply by 12 (molecular weight of carbon) and divide by 32 (molecular weight of O2). That works out to 1.1 trillion tonnes. There is additional carbon in the atmosphere in the form of methane (CH4), carbon monoxide (CO), chlorofluorocarbons (CFC), and a few other carbon compounds. If you count pollen, wind born leaves, birds, and other things occasionally swept aloft, the atmosphere temporarily suspends much more carbon yet.
Which planet hAs the thinnest atmosphere of mostly made of carbon dioxide?
Mars, Venus's atmosphere is thicker than Earth's. Much thicker.
How does carbon and the atmosphere interact?
The carbon cycle moves carbon in and out of the atmosphere, the land, plants and animals, and the oceans. Carbon dioxide in the atmosphere is a greenhouse gas that keeps the planet warm. Too much carbon dioxide in the atmosphere, from humans adding it by burning fossil fuels, is causing an accelerated greenhouse effect, global warming.
How is carbon dioxide fixed in the atmosphere?
It is not fixed in the atmosphere. It moves as part of the carbon cycle in and out of the oceans, the atmosphere and the land.
Why was carbon discovered?
Carbon is known from prehistoric times.
When a carbon atom enters the atmosphere it turns into what?
it should still be carbon, but too much carbon is bad for the atmosphere. Google: "Carbon in atmoshpere" and see why it's bad
What country was carbon first discovered?
The discovery of Carbon is prehistoric. You can find it in campfires.
Wow many tons of carbon do you put into the atmosphere annually?
I have no clue. How much do you put in the atmosphere annually?
Does Mars have am atmosphere?
Yes, but it is much thinner than Earth's atmosphere, and has considerably more carbon dioxide.
What gas in the atmosphere was absorbed by the oceans as they formed?
The ocean water absorbed much of the carbon dioxide from the atmosphere.
Does respiration decrease or increase the amount of carbon dioxide in the atmosphere?
Respiration (breathing) has no effect on the amount of carbon dioxide in the atmosphere. Breathing is part of the carbon cycle. We take in carbon in our food and drink and we release it again when we breathe. If we eat too much, the extra carbon is stored in our bodies, making us fatter, in much the same way as a tree stores carbon in its wood as it grows.So breathing does not increase or decrease the amount of carbon dioxide in the atmosphere.
How much carbon dioxside does mars contain?
95.32% of the Martian atmosphere is Carbon Dioxcide.(aka CO2)
How much carbon exist in the world today?
carbon exist in earth crust as 0.02% and in atmosphere 0.03%
Where is carbon in the atmosphere mostly found?
Carbon in the atmosphere is mostly found in the form of carbon dioxide (CO2), which makes up about 0.04% of the atmosphere. Carbon can also exist in the form of methane (CH4) and other greenhouse gases in smaller concentrations.
What fraction of the earths atmosphere is carbon mioxide?
Earth's atmosphere is about 0.035% CO2. Since the atmosphere is just a thin layer of gas surrounding the earth, CO2 is a much, much smaller fraction of the earth itself.
Who discoverd carbon?
Ancients and they discovered it in prehistoric times
