The layer of the Earth that is best characterized as a layer of soft, hot rock is the asthenosphere. The asthenosphere is located beneath the lithosphere and extends to about 700 kilometers (approximately 430 miles) deep into the Earth's mantle. It consists of partially molten rock that flows slowly, which allows for the movement of tectonic plates above it. The material in this layer is not completely liquid but is ductile and capable of deformation, making it behave more like a viscous fluid over geological timescales.
which layer of earths is best characterized as layer of soft hot rock
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