Describe the efficiency of energy transfer between trophic levels and discuss how the amount of energy available at each trophic level affects the ecosystem?
In the process, metabolic work is done and energy in chemical bonds is converted to heat energy. If NPP was not consumed, it would pile up somewhere. Usually this doesn't happen. When we burn these deposits we release the energy to drive the machines of industry, and of course the CO2 goes into the atmosphere as a greenhouse gas. This is the situation that we have today, where the excess CO2 from burning these deposits (past excess NPP) is going into the atmosphere and building up over time.
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About Energy
Energy is used to do work. In our modern lives we are more and more preoccupied with finding new sources of energy to heat our buildings and move our machines, including cars. Since the dawn of the 20th century, fossil fuels have been the main way we get energy, but those forms of energy are causing environmental damage and leading to global warming. That is because the burning of fossil fuels releases carbon dioxide into the atmosphere. New forms of energy are being sought.
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