Question

what is meant by sima and sial​

Answer 1

Explanation:

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• In geology, sima (/ˈsaɪmə/) is an antiquated blended term for the lower layer of Earth's crust.
• Comparable is the name 'sial' which is the name for the upper layer of Earth's crust (continental crust).

Answer 2

Answer:

In geology, sima (/ˈsaɪmə/) is an antiquated blended term for the lower layer of Earth's crust. ... Comparable is the name 'sial' which is the name for the upper layer of Earth's crust (continental crust).