The Earth is composed of four main spheres, each representing different components of the planet. These spheres are:
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Lithosphere: This is the solid outer layer of the Earth, which includes the crust and the uppermost part of the mantle. It contains solid rock both below and at the Earth's surface.
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Atmosphere: This sphere is made up of gases that surround the Earth, providing air for living organisms and influencing weather and climate.
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Hydrosphere: This encompasses all the water on Earth, including oceans, rivers, lakes, and groundwater.
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Biosphere: This includes all living organisms, as well as the environments in which they exist, integrating aspects of the lithosphere, atmosphere, and hydrosphere.
Given your question about which sphere contains solid rock both below and at the Earth's surface, the answer is the Lithosphere.
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