Discussion
The second zone of the interior of the earth extending from 30 kilometer to 2900 kilometer depth is:
Answer: B
This zone is the mantle.
It lies between the crust and the outer core, extends from about 30 km to 2,900 km, and makes up some 84 per cent of the earth's volume. It is solid silicate rock that flows plastically over geological time, and its slow convection drives plate motion.
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