crust

What are the 2 main mineral constituents which make SIAL

• Iron, silica

• silica, magnesium

• silica, Alumina

• both b and c

What are the four parts of the earth

• crust, nickel, mantle and silica

• mantle, inner core, crust, Iron

• inner core, outer core, mantle, SIMA

• mantle, outer core, crust, inner core

the thickness of the earth crust varies between____________ km.

• 5-8

• 2-4

• 3-5

• 6-9

the outermost layer of the earth is called ________________.

• mantle

• inner core

• crust

• outer core

Si is ____________.

• SIAL

• SIMA

• Silica

• Alumina

What is the first layer of the earth

• Inner core

• upper mantle

• crust

• outer core

Which layer of the earth can sustain life?

• core

• crust

• mantle

• upper mantle

If a hard-boiled egg is an example of the Earth, the shell of the egg would be similar to the ________ of the Earth.

• crust

• core

• upper mantle

• atmosphere

The violent and sudden movement of the earth's crust

• earthquake

• tsunami

The Earth has a THICK crust.

• true

• false