Carbon in the atmosphere is added by processes like combustion, decomposition and losses from methane sources. It is removed by photosynthesis and, chemical reaction and dissolving in ocean water. As long as the sources exceed the sinks the carbon will stay (and increase) in the atmosphere. Human activities increase the sources and decrease the sinks.
By Plants
It is because plants take in carbon dioxide and breathe out Oxygen whereas, man and animals breathe in oxygen and breathe out carbon dioxide. This cycle of life maintaines a roughly same percentage of O2 and CO2 in the atmosphere.
to give plants nuetrition
Yes. Trees are so important because they turn Carbon Dioxide from the atmosphere into Oxygen which we need to stay alive. So, the more trees that are cut down, the more Carbon Dioxide will stay in the atmosphere.
If it stays the same, then the world's temperature does not go up. The carbon cycle moves carbon in and out of the atmosphere, the oceans and every other part of the biosphere. This is a natural effect and it keeps the world pleasantly warm for most of us to survive. The amount of carbon in the air stays the same. However, we have been burning coal and other fossil fuels for the past 250 years. Fossil fuels contain carbon that was laid down million of years ago, so this is extra gas into the atmosphere. This extra gas is also not removed. So it stays there warming up, causing global warming.
Theoretically it should stay the same because matter can't be created or destroyed.
Theoretically it should stay the same because matter can't be created or destroyed.
Carbon dioxide. That's not quite right because carbon dioxide is about 95% of the atmosphere of Mars.
Yes (higher= less oxygen, and vice-versa for lower.) actually the oxygen ratio remains the same but air gets less dense at altitude so you have to breathe a lot more air to get the oxygen you need
Weather does not stay the same because of weather patterns around the world.Hope it helped! XD
The actual atmosphere itself does not change with elevation, but the atmospheric pressure does.
Mostly for the same reason you stay close to the surface of the planet - gravity!