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Crustal (or lithospheric) plates are pulled or pushed by the movement of heated rock in the asthenosphere.
the asthenosphere and the lithosphere contain molten material.
Earth's mantle. These convection currents are driven by heat from the Earth's core, which causes material in the mantle to become less dense and rise, and denser material to sink. This movement of the mantle material pushes and drags the tectonic plates along with it.
When magma is being heated it rises. When it is cooled, it sinks.
The elevated temperature and the application of loads that are a significant fraction of the failure strength of the material forming the asthenosphere lead to creep (or plastic) behaviour.
yes
no
Crustal (or lithospheric) plates are pulled or pushed by the movement of heated rock in the asthenosphere.
all different things
Actually, hot, less dense material rises, and cold, denser material sinks. Denser material will be heavier (per unit volume) and gravity therefore pulls it down. Less dense material has buoyancy and rises. It's very logical.
Because of the asthenosphere.
rise
Rise
the asthenosphere and the lithosphere contain molten material.
the asthenosphere and the lithosphere contain molten material.
The asthenosphere is the thin sheet of plasticlike material that the plates "float" upon as they bump and slide into each other.
The asthenosphere is a zone of weak material that exists below the lithosphere. The rock within this zone is easily deformed.