GIA CS 2-4, 7 Exam Questions and
Answers 100% Score Latest update
2026
the surface and outermost layer of the earth -
correct answer ✅crust
a layer between the earth's crust and its core -
correct answer ✅mantle
the earth's innermost layer -
correct answer ✅core
general term for any molten rock -
correct answer ✅magma
sections of the earth's rigid outer crust -
correct answer ✅plates
study of the formation, structure, and movement of the plates of
the earth's crust -
correct answer ✅plate tectonics
,GIA CS 2-4, 7 Exam Questions and
Answers 100% Score Latest update
2026
circulation in the mantle that drives the movement of the earth's
plates -
correct answer ✅mantle convection
a process that occurs when two of the earth's plates collide, forcing
one under the other -
correct answer ✅subduction
a long, widespread area in the earth's crust where tectonic events
cause major structural changes, often forming mountain ranges -
correct answer ✅orogenic belt
a constant formation and recycling process that creates new rock
from old -
correct answer ✅rock cycle
the wearing away and transport of rock materials by natural forces -
correct answer ✅erosion
rock formed by the crystallization of molten material -
correct answer ✅igneous rock
,GIA CS 2-4, 7 Exam Questions and
Answers 100% Score Latest update
2026
a category of rocks that have been altered by heat and pressure -
correct answer ✅metamorphic rock
rock produced from the eroded and weathered remains of existing
rocks -
correct answer ✅sedimentary rock
pertaining to igneous activity at the earth's surface, where magma
erupts through a volcano or fissure -
correct answer ✅volcanic
crystallization of minerals from a gas -
correct answer ✅pneumatolysis
a "foreign crystal" that forms in unrelated rocks and is brought to
the surface as a passenger in magma -
correct answer ✅xenocryst
, GIA CS 2-4, 7 Exam Questions and
Answers 100% Score Latest update
2026
an igneous rock typically formed from cooling, once-molten granite
that follows fractures in its surrounding rock -
correct answer ✅pegmatite
a mineral deposit that occupies an existing fissure or fracture in the
rock -
correct answer ✅vein
large mass of igneous rock that crystallizes underground without
reaching the surface -
correct answer ✅intrusion
a small, irregularly shaped mass or lump of crystals or particles with
a contrasting composition ("potato shaped") -
correct answer ✅nodule
hot, high-pressure solution that can dissolve, transport, and deposit
minerals from one place to another -
correct answer ✅hydrothermal fluid
Answers 100% Score Latest update
2026
the surface and outermost layer of the earth -
correct answer ✅crust
a layer between the earth's crust and its core -
correct answer ✅mantle
the earth's innermost layer -
correct answer ✅core
general term for any molten rock -
correct answer ✅magma
sections of the earth's rigid outer crust -
correct answer ✅plates
study of the formation, structure, and movement of the plates of
the earth's crust -
correct answer ✅plate tectonics
,GIA CS 2-4, 7 Exam Questions and
Answers 100% Score Latest update
2026
circulation in the mantle that drives the movement of the earth's
plates -
correct answer ✅mantle convection
a process that occurs when two of the earth's plates collide, forcing
one under the other -
correct answer ✅subduction
a long, widespread area in the earth's crust where tectonic events
cause major structural changes, often forming mountain ranges -
correct answer ✅orogenic belt
a constant formation and recycling process that creates new rock
from old -
correct answer ✅rock cycle
the wearing away and transport of rock materials by natural forces -
correct answer ✅erosion
rock formed by the crystallization of molten material -
correct answer ✅igneous rock
,GIA CS 2-4, 7 Exam Questions and
Answers 100% Score Latest update
2026
a category of rocks that have been altered by heat and pressure -
correct answer ✅metamorphic rock
rock produced from the eroded and weathered remains of existing
rocks -
correct answer ✅sedimentary rock
pertaining to igneous activity at the earth's surface, where magma
erupts through a volcano or fissure -
correct answer ✅volcanic
crystallization of minerals from a gas -
correct answer ✅pneumatolysis
a "foreign crystal" that forms in unrelated rocks and is brought to
the surface as a passenger in magma -
correct answer ✅xenocryst
, GIA CS 2-4, 7 Exam Questions and
Answers 100% Score Latest update
2026
an igneous rock typically formed from cooling, once-molten granite
that follows fractures in its surrounding rock -
correct answer ✅pegmatite
a mineral deposit that occupies an existing fissure or fracture in the
rock -
correct answer ✅vein
large mass of igneous rock that crystallizes underground without
reaching the surface -
correct answer ✅intrusion
a small, irregularly shaped mass or lump of crystals or particles with
a contrasting composition ("potato shaped") -
correct answer ✅nodule
hot, high-pressure solution that can dissolve, transport, and deposit
minerals from one place to another -
correct answer ✅hydrothermal fluid
