Question

3. Movement of the plates over Earth's surface is termed plate tectonics.
Plates move at a rate of a few centimetres a year, about the same rate
fingernails grow. Why do the lithospheric plates move? .
They are too light and unstable due to their composition
They lie very close to the core of the earth and get strongly affected by gravity which
causes their movement
The lithospheric plates glide over the mantle which is also moving in a circular
manner inside the earth.
The plates lie on the oceans and move when waves and tides are formed.​

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