No, they're not. In fact, about 78% of the Earth's atmosphere is nitrogen.
Nitrogen ~ 78% Oxygen ~ 21% CO2(and other gasses) ~ 1%
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.
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
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.
There is only one gas. It is the co2 gas.
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.
They produce oxygen during photosynthesis.
CO2 makes up approximately 0.03% of Earth's atmosphere
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.
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.
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.
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.