The ___________ is a very thick layer and lies below the crust.
Mantle
Lava
Soil
Rock
Name the scale which is used to measure the magnitude of the earthquakes?
Richter scale
Mercalli scale
Moment magnitude scale
Mohs scale
The denser layers underneath the SIAL layer is called ___________.
SIAL
SIMA
Magma
Core
_________ layers is less dense.
The landmasses, which provide a home for humans, animals and plants represent the solid realm of the Earth is called ___________.
Lithosphere
Atmosphere
Hydrosphere
Biosphere
The density of ________ varies beween 12 and 15.
Crust
___________ has an average thickness of about 60 km.
___________ forms the ocean floor.
__________ is made up of many kinds of rocks.
The ________ includes the ocean beds as well and it is thinnest beneath the oceans, sometimes even less than 8 km.