The reason that consumption of a large amount of carbon dioxide by living trees does not make much contribution in the reduction of global warming. Concept introduction : The earth’s surface has enormous amount of carbon. It moves through the biosphere in the processes mediated by photosynthetic plants on land and in sea. This is represented as the carbon cycle , which involves two main processes namely photosynthesis and respiration. The photosynthesis process involves fixation of atmospheric carbon in plants to form organic molecules such as sugars required for life processes. Respiration is the process through which carbon is returned to the atmosphere from dead plants in the form of carbon dioxide.

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Chapter 10, Problem 8TYU

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To explain: The reason that consumption of a large amount of carbon dioxide by living trees does not make much contribution in the reduction of global warming.

Concept introduction:

The earth’s surface has enormous amount of carbon. It moves through the biosphere in the processes mediated by photosynthetic plants on land and in sea. This is represented as the carbon cycle, which involves two main processes namely photosynthesis and respiration. The photosynthesis process involves fixation of atmospheric carbon in plants to form organic molecules such as sugars required for life processes. Respiration is the process through which carbon is returned to the atmosphere from dead plants in the form of carbon dioxide.

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Scientific evidence indicates that the CO2 added to the air by the burning of wood and fossil fuels is contributing to global warming, a rise in global temperature. Tropical rain forests are estimated to be responsible for approximately 20% of global photosynthesis, yet the consumption of large amounts of CO2 by living trees is thought to make little or no net contribution to reduction of global warming. Explain why this might be the case.

Scientific evidence indicates that the CO2 added to the air by the burning of wood and fossil fuels is contributing to global warming, a rise in global temperature. Tropical rain forests are estimated to be responsible for approximately 20% of global photosynthesis, yet the consumption of large amounts of CO2 by living trees is thought to make little or no net contribution to reduction of global warming. Why might this be? (Hint: What processes in both living and dead trees produce CO2?) *