GC100 Final Exam questions n
answers graded A+
Lithosphere - correct answer ✔✔Which layer of the Earth is the uppermost layer and begins at
the Moho?
Metamorphic - correct answer ✔✔Rocks that form from heat and pressure without melting are
The three rock families are igneous, sedimentary, and metamorphic. - correct answer ✔✔True
Crust - correct answer ✔✔The outer layer of the Earth is the
Inner Core - correct answer ✔✔The solid iron and nickel inside the Earth forms its
The outer core is the dominant cause of the Earth's magnetic field. - correct answer ✔✔True
clastic sedimentary rock - correct answer ✔✔Rocks that form from broken rock fragments make
rocks classified as
Geomorphology - correct answer ✔✔The study of landforms and how they form is BEST called
oxygen and silicon - correct answer ✔✔What are the two most abundant elements in the
Earth's crust?
Quartz - correct answer ✔✔A common rock-forming mineral is
, organic sedimentary - correct answer ✔✔The age of the Earth is about
Lithification - correct answer ✔✔The process whereby loose rock debris is cemented and
compacted to form rock is called
Outcrop - correct answer ✔✔A place where rock is exposed at the Earth's surface is a(n)
Igneous - correct answer ✔✔Rocks that form from melted rock that has cooled and solidified
are
The end of eras of geologic time are marked by mountain building events and extinctions.T/F -
correct answer ✔✔True
Dike - correct answer ✔✔Magma that has moved vertically upward through a crack in the rock
forms a(n)
Concerning geologic time, about how long is the Holocene? - correct answer ✔✔10,000 years
T/F Each rock family can form from rocks that were previously in any of the three rock families. -
correct answer ✔✔TRUE
What are the three categories of sedimentary rocks? - correct answer ✔✔organic, clastic,
chemical
Magma that pools between rock layers and pushes the overlying layers up is a - correct answer
✔✔Laccolith
Sedimentary - correct answer ✔✔Rocks that form from the cementation and compaction of
loose rock debris and organic matter are
answers graded A+
Lithosphere - correct answer ✔✔Which layer of the Earth is the uppermost layer and begins at
the Moho?
Metamorphic - correct answer ✔✔Rocks that form from heat and pressure without melting are
The three rock families are igneous, sedimentary, and metamorphic. - correct answer ✔✔True
Crust - correct answer ✔✔The outer layer of the Earth is the
Inner Core - correct answer ✔✔The solid iron and nickel inside the Earth forms its
The outer core is the dominant cause of the Earth's magnetic field. - correct answer ✔✔True
clastic sedimentary rock - correct answer ✔✔Rocks that form from broken rock fragments make
rocks classified as
Geomorphology - correct answer ✔✔The study of landforms and how they form is BEST called
oxygen and silicon - correct answer ✔✔What are the two most abundant elements in the
Earth's crust?
Quartz - correct answer ✔✔A common rock-forming mineral is
, organic sedimentary - correct answer ✔✔The age of the Earth is about
Lithification - correct answer ✔✔The process whereby loose rock debris is cemented and
compacted to form rock is called
Outcrop - correct answer ✔✔A place where rock is exposed at the Earth's surface is a(n)
Igneous - correct answer ✔✔Rocks that form from melted rock that has cooled and solidified
are
The end of eras of geologic time are marked by mountain building events and extinctions.T/F -
correct answer ✔✔True
Dike - correct answer ✔✔Magma that has moved vertically upward through a crack in the rock
forms a(n)
Concerning geologic time, about how long is the Holocene? - correct answer ✔✔10,000 years
T/F Each rock family can form from rocks that were previously in any of the three rock families. -
correct answer ✔✔TRUE
What are the three categories of sedimentary rocks? - correct answer ✔✔organic, clastic,
chemical
Magma that pools between rock layers and pushes the overlying layers up is a - correct answer
✔✔Laccolith
Sedimentary - correct answer ✔✔Rocks that form from the cementation and compaction of
loose rock debris and organic matter are
