Sandstone and shale are the examples of __________.

The denser layer underneath the SIAL layer is called ____________.

___________ is molten rock found in the hot interiors of the Earth.

_____________ is rich in iron and magnesium.

___________ has an average thickness of about 60 km.

__________ are usually mixture of two or more minerals.

The core is also called

The solid outer layer of the Earth consisting of various rocks and minerals is called the ______________.

__________ rocks do not have remains of animals or plants.

____________  rocks are mostly formed under water.