___________ has an average thickness of about 60 km.
Mantle
Core
Magma
Crust
The upper part of the crust is called
Oceanic crust
Continental crust
Island crust
Mountain crust
The average radius of the core is about _________.
3500 km
2500 km
6500 km
4500 km
Granite and basalt are the examples of ____________.
Sedimentary rocks
Metamorphic rocks
Igneous rocks
None of these
A rock in which a particular mineral is found in a large percentage is called the _________ of that mineral.
Bore
Ore
Sore
The rocks that cool on the surface of the Earth are called
Intrusive igneous rocks
Extrusive igneous rocks
Primary rocks
____________ rocks are formed by cooling and solidification of molten matter on the surface of the Earth or within the crust.
The denser layer underneath the SIAL layer is called ____________.
SIAL
SIMA
The core is made up of
Iron and Nickel
Rocks and Minerals
Solid Iron and Cobalt
Nickel and Chromium
Right at the centre of the Earth is the ___________.
Lava
