Burning fossil fuels moves carbon from the geosphere to the atmosphere.
Explanation:
A carbon cycle is a model that indicates how carbon is cycled across the spheres of the earth. Burning of fossil fuels is part of this cycle indicating movement of carbon from the geosphere – since fossil fuels are derived from the geosphere (the rocks of the crust) - to the atmosphere as carbon dioxide. Again this carbon will cross over to the biosphere when taken up by plants from the atmosphere during photosynthesis
