The _____________ is a very thick layer and lies below the crust.
Mantle
Lava
Soil
Rock
Life exists on the earth primarily due to the ____________ main realms.
Two
Three
Four
Five
___________ is a geological area where land,air and water meet and enable life to exist.
Atmosphere
Biosphere
Lithosphere
Hydrosphere
__________ refers to the soil or the crust of the Earth.
Sand stone and shale are the examples of __________.
Igneous rocks
Metamorphic rocks
Sedimentary rocks
None of these
__________ is about 700 km thick and is held together by the gravitational force of the Earth.
Igneous rocks are of __________ types.
The denser layer underneath the SIAL layer is called ___________.
SIMA
Magma
Core
____________ is also known as lithosphere.
Crust
___________ is a blanket of gases around the Earth.