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No, they're not. In fact, about 78% of the Earth's atmosphere is nitrogen.

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12y ago

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What are the 3 main gasses in the atmosphere and what percentage is each?

Nitrogen ~ 78% Oxygen ~ 21% CO2(and other gasses) ~ 1%


What is the only thing on earth that can remove CO2 from the atmosphere?

Plants, through the process of photosynthesis, are the only natural mechanism on Earth that can remove carbon dioxide (CO2) from the atmosphere. During photosynthesis, plants absorb CO2 and convert it into oxygen and glucose, which they use as energy.


Does the amount of vegetation on earth impact global warming?

Massively. all vegetation repires, taking in oxygen and giving out CO2, but plants also photosynthisise, which has the opposite afect such that the net result is CO2 in Oxygen out. they therefore have a massive affect on greenhouse gasses, and most importantly if there were no plants there would not only be no food for us but no oxygen. in fact, when you think about what you just said it is a ridiculous question. P.S. they also give out a litle heat


What gasses are exchanged in the lungs?

There are two main gasses that are exchanged in the lungs: carbon dioxide and oxygen. The lungs use tiny air chambers called alveoli to take in oxygen and let out carbon dioxide.


How are gasses used during photosynthesis?

There is only one gas. It is the co2 gas.


What is the composition of the atmosphere of the planet?

The Earth's atmosphere is about 79% nitrogen, 20% oxygen, and 1% "other" gasses. The "Other" includes water vapor (H2O), carbon dioxide (CO2), various nitrogen oxides (NOX, where "x" can be 2, 3 or 4), "noble" gasses such as argon, neon, or helium, or organic gasses such as methane.


How much oxygen do plankton give off?

They produce oxygen during photosynthesis.


What percentage do the noble gasses make up the atmosphere?

CO2 makes up approximately 0.03% of Earth's atmosphere


Why is air not a compound but a mixture?

air is a mixture of gasses that are onmpouds like CO2, Methane and so on and gasses that are ellements like Oxygen Nitrogen argon and others. Air is a mixture of compounds and ellements.


Why is air a mixture but not a compound?

air is a mixture of gasses that are onmpouds like CO2, Methane and so on and gasses that are ellements like Oxygen Nitrogen argon and others. Air is a mixture of compounds and ellements.


Why is air a mixture but a compound?

air is a mixture of gasses that are onmpouds like CO2, Methane and so on and gasses that are ellements like Oxygen Nitrogen argon and others. Air is a mixture of compounds and ellements.


Historically have there been any changes to the proportion of oxygen in air?

When the earth was first made, there was very little oxygen, the atmosphere was mainly co2, ch4, h2o and other gasses. Then, after life developed, some of the bacteria started to produce o2. This dramatically increased the amount in the atmosphere. since then there have been constant fluctuations as with many of the gasses in our atmosphere like carbon dioxide.