Decaying plants, trees or animals, in other words, any organic matter.
Volcanic eruptions are a natural source of sulfur dioxide, carbon dioxide, and ash in the atmosphere. During an eruption, gases such as sulfur dioxide and carbon dioxide are released from the magma, along with ash which is a mixture of fine rock particles and gases.
Carbon dioxide is being released. As you breathe in you inhale fresh oxygen, but as you breathe out your body releases carbon dioxide.
O, carbon dioxide
Biomass
No, the natural cycle of carbon dioxide (CO2) moves through the land, oceans and atmosphere, and has done for millions of years. It is able to remove all the natural carbon in the air (and part of the global warming carbon as well). It is the burning of fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity that releases carbon that has been hidden underground for millennia that is increasing the carbon concentrations in the atmosphere.
The balance of oxygen and carbon dioxide is maintained in the atmosphere by the oxygen released by plant during photosynthesis and carbon dioxide released by human ,animal's etc in the atmosphere
The main natural process that absorbs carbon dioxide in the atmosphere is photosynthesis, which is carried out by plants and other photosynthetic organisms.
After carbon dioxide is released into the atmosphere, it can be absorbed by plants through photosynthesis, dissolved in the oceans, or remain in the atmosphere contributing to the greenhouse effect.
The carbon in fossil fuels is released into the atmosphere through the combustion of these fuels, such as burning coal, oil, or natural gas for energy production. This process releases carbon dioxide and other greenhouse gases into the atmosphere, contributing to climate change.
Carbon dioxide is released from carbonate rocks into the atmosphere through processes such as weathering, dissolution, and metamorphism. When carbonate rocks are exposed to water or acidic conditions, they break down and release carbon dioxide as a byproduct. This released carbon dioxide can then be released into the atmosphere through various pathways.
Respiration, breathing, has no effect on the amount of carbon dioxide in the atmosphere. This is part of the natural carbon cycle. Burning fossil fuels (coal, oil and natural gas) releases carbon dioxide that has been hidden away for millions of years. This extra gas is increasing in the atmosphere.
The carbon oxygen cycle is a natural process where carbon dioxide is absorbed by plants during photosynthesis and released back into the atmosphere through respiration. This cycle helps regulate the levels of carbon dioxide in the atmosphere, supporting life on Earth.