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
The amount of carbon dioxide in the atmosphere has stayed the same for thousands of years, but in the past 200 years we have been burning fossil fuels (coal, oil and natural gas). This releases carbon dioxide that has been sequestered underground for 300 million years, so the levels of this greenhouse gas in the atmosphere are increasing.
Yes. There is a balance between oxygen used by animals and oxygen replenished by plants.
they stay the same
Burning fossil fuels (coal, oil and natural gas) and deforestation increase the amount of carbon dioxide in the atmosphere. Respiration and other aspects of the carbon cycle do not increase the amount as a similar volume is being removed at the same time.
Carbon neutral means that algae fuel does not affect the levels of carbon dioxide in the atmosphere. Algae takes in carbon dioxide as it grows, then, when the fuel is burnt, this same carbon dioxide is released. No increase, just exactly the same amount. This is why biofuel is so much better than fossil fuel which releases carbon that had been hidden underground for millions of years, so adding to the levels in the atmosphere.
By Plants
The current level of CO2 in our atmosphere is 390 parts per million. We are now releasing CO2 at astonishing rates into our atmosphere, so to answer your question no. More Carbon Dioxide is being put into our atmosphere each year. There is an average, but that has gone up in the past few decades.
A carbon neutral fuel is one that does not add carbon dioxide to the atmosphere. Biofuel and biomass are carbon neutral because they remove CO2 from the atmosphere during their growing season, and they release exactly the same amount of CO2 when they are burnt. So they are carbon neutral.
Burning fossil fuels (coal, oil and natural gas) and deforestation increase the amount of carbon dioxide in the atmosphere. Respiration and other aspects of the carbon cycle do not increase the amount as a similar volume is being removed at the same time.
Burning fossil fuels (coal, oil and natural gas) and deforestation increase the amount of carbon dioxide in the atmosphere. Respiration and other aspects of the carbon cycle do not increase the amount as a similar volume is being removed at the same time.
Burning fossil fuels (coal, oil and natural gas) and deforestation increase the amount of carbon dioxide in the atmosphere. Respiration and other aspects of the carbon cycle do not increase the amount as a similar volume is being removed at the same time.
Burning fossil fuels (coal, oil and natural gas) and deforestation increase the amount of carbon dioxide in the atmosphere. Respiration and other aspects of the carbon cycle do not increase the amount as a similar volume is being removed at the same time.
Burning fossil fuels (coal, oil and natural gas) and deforestation increase the amount of carbon dioxide in the atmosphere. Respiration and other aspects of the carbon cycle do not increase the amount as a similar volume is being removed at the same time.
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.
Volcanos release sulfur dioxide, carbon dioxide, and ash to the atmosphere at the same time
Venus is the same size as Earth and has no moons and has a thick atmosphere of mostly carbon dioxide.
Carbon neutral means that algae fuel does not affect the levels of carbon dioxide in the atmosphere. Algae takes in carbon dioxide as it grows, then, when the fuel is burnt, this same carbon dioxide is released. No increase, just exactly the same amount. This is why biofuel is so much better than fossil fuel which releases carbon that had been hidden underground for millions of years, so adding to the levels in the atmosphere.
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.
nag tanong nga eh..