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State the importance of carbon cycle and what is greenhouse effect?URGENT!!! |
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Answer» Carbon cycle Carbon in the form ofcarbon dioxide is used by plants to prepare glucose by the process ofphotosynthesis. The glucose is used to PROVIDE energy and to convert into otherorganic compounds When animals eat plants it enters the body of animals. Duringrespiration energy and carbon dioxide are produced. The carbon dioxide goesback into the atmosphere. Another process which adds carbon dioxide back intothe atmosphere is the COMBUSTION of fuels like COAL and petroleum. The organiccompound in plants and animals are also converted into carbonates, limestone,coal, petroleum, exoskeletons (shells) of some animals. Carbon is an essential component ofbiological molecules like carbohydrates, fats, proteins, vitamins, nucleicacids etc. the green house effect Gases like carbondioxide, methane, chloro fluro carbon(CFCs) trapsthe heat radiated by the earth and PREVENTS the escape of heat from the earth.The increase in the presence of these gases in the atmosphere causes increasein the temperature of the atmosphere. This is called the GREENHOUSE effect. Greenhouse effect can cause melting ofpolar ice, increase in sea levels, flooding of coastal areas and submerging ofislands. |
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