Carbon Cycle

All living organisms on the earth need carbon.

Carbon is the twelfth most common element in the earth, making up less than 1% of the earth crust.

It occurs in elemental form as diamond and graphite.

whereas in the combined state, it is found as carbon dioxide in the atmosphere.

And in various minerals, it is found in carbonate and hydrogen carbonate forms.

whereas all the major nutrients like proteins, fats, carbohydrates, etc are also carbon compounds.

The endoskeletons are formed with carbonate salts.

whereas the exoskeletons are also formed with carbonate salts.

So, it is evident that without carbon, life would not exist.

Let us learn about the carbon cycle in detail.

The carbon cycle is the process in which carbon travels from the atmosphere into organisms and the Earth and then back into the atmosphere.

Precisely, the steps involved in the carbon cycle are:

The source of the carbon in this carbon cycle is .

Moving ahead, let us know about the various process through which carbon dioxide leaves the atmosphere.

Green plants take carbon dioxide and water.

Photosynthesis converts this carbon dioxide and the water into glucose molecules by using the energy of the sun.

Let us now see what happens to the carbon once it is captured from the atmosphere.

The plants are eaten by animals. and animals. They also die after some years.

After their death, they are buried and slowly after some thousands of years they are fossilized.

Tiny sea creatures die and their bodies fall to the bottom of the sea, where they are gradually converted into limestone.

Let us now learn about the ways in which carbon dioxide is put back into the atmosphere.

Animals, Human beings, and plants breathe out the during their respiration.

This process of respiration uses from the air and releases into the atmosphere.

whereas the utilization of glucose to provide energy to living things also involves the process of respiration.

Another process that adds carbon dioxide in the atmosphere is combustion.

Cooking, transportation, and industrial processes contributes to carbon dioxide in the atmosphere.

while Fossilization is a process by which carbon dioxide is contributed from the decomposed plants and dead animals in the atmosphere.

Let us now try to summarize all the above process.

So, carbon is recycled repeatedly from different forms by various physical and biological activities. This entire cycle is known as the carbon cycle.

In terms of a block diagram, the carbon cycle can be explained as

Revision

The carbon cycle is the process in which carbon travels from the atmosphere into organisms and the Earth and then back into the atmosphere.

Photosynthesis converts carbon dioxide from the atmosphere or dissolved in water into glucose molecules.

The utilization of glucose to provide energy to living things involves the process of respiration.

Combustion also produces carbon dioxide

The End