Question

SIMA is largely made up ______ rocks and SIAL is largely made up of ______ rocks.

Options

• Granite, Basalt

• Basalt, Granite

• Silica, Magnesium

• Silica, Aluminium

Answer 1

SIMA is largely made up basalt rocks and SIAL is largely made up of granite rocks.

Explanation:

SIMA is largely made up of basaltic rocks, which are rich in silica and magnesium and are heavier. SIAL is largely made up of granitic rocks, composed mainly of silica and aluminium, and is lighter. SIMA forms the oceanic crust, while SIAL forms the continental crust.