§-Quick questions
WAEarth and Environmental ScienceUnit 3: Managing Earth resources
Quick questions on Fossil fuel formation: WACE Year 12 Earth and Environmental Science
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is coal formation?Show answer
Coal forms from terrestrial plant matter.
What is fossil fuels as stored solar energy?Show answer
It is worth stating explicitly, because SCSA likes the systems link, that fossil fuels are concentrated stores of ancient solar energy. Photosynthesis captured sunlight as chemical energy in plant and plankton tissue; burial preserved that organic matter from full decay; and millions of years of heat and pressure concentrated it into energy-dense coal, oil and gas. Burning a fossil fuel releases that stored solar energy, along with the carbon that was locked away. This single framing connects the biosphere (organic matter), the geosphere (burial and maturation), the energy that drives the whole system (the Sun), and the carbon cycle disruption that results from combustion, which is exactly the cross-sphere reasoning the syllabus rewards.
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