first crashing of tectonic plates second that's up to you
Carbon from seashells can enter the atmosphere through natural processes like weathering, which breaks down the shells and releases carbon dioxide. Additionally, human activities such as burning fossil fuels made from limestone, which is a source of carbon accumulated from ancient marine life, can release carbon into the atmosphere.
Seashells are primarily made of calcium carbonate, which is a compound derived from calcium and carbon dioxide. Carbon is a component of the calcium carbonate molecules that make up the structure of seashells, but seashells are not made solely of carbon.
The two processes of the carbon cycle are photosynthesis and cellular respiration. In photosynthesis carbon from carbon dioxide is fixed into carbohydrates. In cellular respiration, carbohydrates are broken down to form ATP and carbon in the form of carbon dioxide is released into the atmosphere.
The atmosphere of Mars is mostly carbon dioxide, rather like that of Venus, but much thinner.. It has smaller amounts of argon and nitrogen with trace amounts of methane.
Carbon is removed from the atmosphere in some ways. For example, plants and trees eliminate carbon from the atmosphere through photosynthesis. Carbon will be released into the atmosphere when an organism dies.
Most of the carbon in the atmosphere is in the form of carbon dioxide, (CO2) gas.
There are many objects in the world that contain carbon. Some items are seashells, pencils, fabrics, wood, carbonated sodas, and water.
Carbon Cycle.
Carbon dioxide (CO2) is the molecule in which carbon is found in the Earth's atmosphere.
Carbon dioxide rises in the atmosphere.
Carbon is cycled from the atmosphere to producers (plants) through photosynthesis, where they take in carbon dioxide to produce glucose. Consumers then consume these plants, obtaining carbon by eating them. When consumers respire or decompose, carbon is released back into the atmosphere as carbon dioxide.
Carbon dioxide (CO2) is the molecule that carries most of the carbon in the atmosphere.