___________ may be formed through different process and are also classified on the basis of their formation.
Metamorphic rocks
Sedimentary rocks
Igneous rocks
None of these
___________ are usually dome shaped with no definite floor.
Laccoliths
Sills
Batholiths
Dykes
____________ have a silica content between 65 to 85 percent.
Basic igneous rocks
Acid igneous rocks
Extrusive igneous rocks
Intrusive igneous rocks
_________ rocks are soft and layered.
Metamorphic
Sedimentary
Igneous
Granite is __________.
Basic igneous rock
Extrusive igneous rock
Intrusive igneous rock
Acid igneous rock
__________ are generally lack in iron and magnesium.
___________ are subjected to mechanical weathering .
The word 'Igneous' is derived from the __________ word.
French
Roman
Latin
American
__________ rocks are not crystalline.
___________ are hard and resistant to erosion.