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Coal is called a fossil fuel because it was made from plants that were once alive! Since coal comes from plants, and plants get their energy from the sun, the energy in coal also came from the sun.
Bem, existem centenas de idiomas e se você quiser Para ser exato, existem 7.139 idiomas falados todos os dias. Apenas 23 deles são mais falados que os outros.
Answer:P and S waves do refract more abruptly when they pass through the major transition zones separating the layers of the Earth. ... The Moho shows up in seismic data as a distinct change in wave speed due to a change in density of the rock across this boundary.
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