It has a melting point of -55.6☌ and has a boiling point of -78.5☌. It is a colourless, odourless gas and is soluble in water, ethanol, and acetone. It is one of the important ingredients in photosynthesis, the process by which green plants prepare food and energy. However, most scientists agree that it would be dangerous for humans to breathe air containing higher concentrations of carbon dioxide than they have in the past.Ĭarbon dioxide is a chemical compound composed of one carbon and two oxygen atoms bonded together. Despite this, natural sources of carbon dioxide are much larger than artificial ones.Ĭarbon dioxide is believed to cause negative health effects in large concentrations, but the possible consequences of living with lower levels have not yet been studied extensively. Burning fossil fuels returns carbon dioxide to Earth's atmosphere after it was stored deep underground over millions of years, while deforestation reduces the number of plants that absorb it. Humans have played a significant role in increasing the concentration of this gas by burning fossil fuels and clearing forests, among other activities. Increased Concentration of Carbon Dioxide It also helps drive the carbon cycle, which is essential for life on Earth to exist. This makes it easier for life on Earth to thrive. It helps trap heat near the Earth's surface, meaning that less of it escapes into space. Carbon dioxide is abundant in the Earth's atmosphere (amounting to about 393 ppm, or parts per million) and plays a vital role in regulating global climate. They are often referred to as greenhouse gases because they allow sunlight to enter but do not allow it to leave, thus heating the lower atmosphere. Carbon dioxide also helps regulate the temperature of the atmosphere and the planet as well. It is essential for photosynthesis, which all plants need to survive. Carbon dioxide is a naturally occurring chemical compound that plays an integral role in the Earth's ecosystem.
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