2.3 Biogeochemical cyclesIB Environmental Systems and Societies SL: Flashcards

What these 14 flashcards ask

• What do biogeochemical cycles do?
• Distinguish a store, a sink and a source.
• Name two organic stores and two inorganic stores of carbon.
• List the flows of carbon between stores in ecosystems.
• Define carbon sequestration.
• Why are fossil fuels carbon stores with unlimited residence times?
• When do fossil fuels become carbon sources?
• Why can draining a peat bog make it a carbon source?
• Give two farming techniques that increase carbon storage.
• How does carbon dioxide enter the ocean and leave it?
• What causes ocean acidification?
• Which marine animals are harmed by acidification?
• What happens at the Sleipner field?
• Contrast technocentric and ecocentric responses to carbon emissions.