Dioxide carbon is a gas that consists of two atoms of oxygen linked to one atom of carbon. This gas is the result of different chemical reactions and produced as a result of both natural process and human activities. In the case of natural processes, carbon dioxide is produced as the result of volcanic eruptions, and decomposition. But most of the carbon dioxide is produced by the activities of human beings, this includes fossil fuels burning as part of the manufacture and other processes in industry and commonly used in domestic heating and vehicles, in which case carbon dioxide is released through the exhaust system. Considering this, it can be concluded engine exhaust, industry, domestic, heating, and volcanic eruptions are all sources of carbon dioxide.
<span>Engine exhaust, industry, domestic heating, and volcanic eruptions are all sources of carbon dioxide. The processes involve in these categories involve combustion reaction. This type of reaction is a reaction between a hydrocarbon and oxygen which forms carbon dioxide and water. Thus, from these processes carbon dioxide is exhausted.</span>
supaya kita dapat mengetahui perkara yang telah berlaku pada masa lampau. Misalnya, dunia hari ini wujud atas kesan daripada perubahan fizikal bumi yang telah berlaku di zaman air batu.
