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WorksheetsHistorical Geology Midterm Review
Total questions: 99
Worksheet time: 49mins
Research indicates that the Earth came into existence approximately ____________ years ago.
4.6 trillion years
4.6 million years
4.6 billion years
4600 years
460 years
A geological process involving the structural deformation of the Earth's lithosphere, often associated with volcanic activity and metamorphism:
subduction
erosion
orogeny
sedimentation
weathering
The water bodies on Earth are part of the
biosphere
hydrosphere
lithosphere
mesosphere
atmosphere
When a sedimentary rock has grains of varying sizes, it can be described as
poorly sorted.
well cemented.
cross-laminated.
densely compacted.
finely graded.
A fossil that is used to define and identify geologic periods; it is widespread and existed for a short span of geologic time:
guide fossil
sedimentary fossil
epoch
formation
unconformity
States that layers of sedimentary rock are deposited in a time sequence, with the oldest on the bottom and the youngest on the top:
principle of original horizontality
principle of superposition
principle of cross-cutting relationships
principle of lateral continuity
principle of inclusions
Which organisms can survive without oxygen?
aerobic
photosynthesis
evolution
anaerobic
metabolism
Mercury is considered a _________ planet.
terrestrial
Jovian
While trekking through the Canadian wilderness, you come across a terrain characterized by ancient igneous and metamorphic formations. What geological structure are you most likely traversing?
platform.
continental shelf.
orogenic belt.
continental rise.
shield.
Atoms of the same element with different atomic masses are called:
ions
electrons
isotopes
neutrons
daughter products
What is the process by which organisms better adapted to their environment tend to survive and produce more offspring?
catastrophism
uniformitarianism
evolution
natural selection
speciation
The theory of evolution by natural selection was proposed by
Gregor Mendel.
Jean-Baptiste de Lamarck.
Charles Darwin.
Aristotle.
Charles Lyell.
What term is used for evidence of ancient life activities, such as footprints, feeding marks, or burrows, excluding any physical remains of the organism itself?
trace fossil
carbonization
cast
mold
permineralization
The concept of organic evolution is supported by various forms of evidence and provides a comprehensive explanation of natural phenomena. Therefore, organic evolution is best described as a
hypothesis
law
theory
unifying concept
working model
Which layer of the Earth is composed of the crust and the uppermost mantle, and is involved in tectonic plate movements?
lithosphere
asthenosphere
atmosphere
biosphere
mesosphere
Identify the supercontinent that formed during the late Precambrian era:
Laurasia
Gondwana
Rodinia
Atlantis
Pangaea
Which process results in the production of two identical daughter cells?
mitosis
meiosis
binary fission
fertilization
crossing over
Which type of rock is formed through the transformation of existing rock types in a process involving heat, pressure, and mineral fluids?
igneous rock
sedimentary rock
metamorphic rock
This scientist applied thermodynamics to estimate the age of the Earth, concluding it was between 20 and 400 million years old.
Hutton
Joly
Bishop Ussher
Lyell
Lord Kelvin
What was a significant factor limiting the diversification of life forms during the Archean and Paleoproterozoic eras?
The predominance of asexual reproduction in prokaryotes.
The predominance of asexual reproduction in eukaryotes.
Limited interbreeding between prokaryotes and eukaryotes.
Sexual reproduction in prokaryotes without genetic transfer.
Sexual reproduction in eukaryotes without genetic transfer.
What is the name for molten rock found beneath the Earth's crust?
crust
sediment
core
magma
ash
Which type of sedimentary rock is formed by the evaporation of water, leading to the deposition of minerals like halite and gypsum?
evaporite
intrusive
magma
peat
volcaniclastic
The Andes Mountains are an example of
an oceanic-continental convergent plate boundary.
a transform plate boundary.
an oceanic-oceanic divergent plate boundary.
a continental-continental convergent plate boundary.
What is the process by which plants convert light energy into chemical energy stored in glucose molecules?
fermentation
photosynthesis
respiration
transpiration
oxidation
What are sections of oceanic crust that have been thrust onto continental crust called?
turbidites.
ophiolites.
ultramafics.
layered intrusions.
none of the above
What is the term for an erosional surface that separates parallel sedimentary layers?
angular unconformity.
disconformity.
nonconformity.
hiatus.
bedding plane.
Which concept suggests that geological changes occur gradually over time, similar to processes observed today?
catastrophism
neptunism
plutonism
uniformitarianism
communism
What type of bond involves the sharing of electron pairs between atoms, commonly found in substances like diamond?
covalent bond
metallic bond
malleable
orogeny
ionic bond
What state of matter is the Earth's outer core?
Solid
Liquid
Gas
Paleomagnetism is significant in geology because
it helps in understanding the formation of Earth's magnetic field.
it indicates that most rocks are devoid of magnetic properties.
it shows how magnetic minerals can interfere with Earth's magnetic field.
it reveals that magnetic minerals orient themselves towards the magnetic poles during rock formation.
it has no relevance to geological studies.
What is the term for an erosional surface that separates older tilted layers from younger horizontal layers?
angular unconformity.
disconformity.
nonconformity.
hiatus.
bedding plane.
For a neutrally-charged atom to become a negatively-charged ion of the same element it must
gain a proton
gain an electron
lose a proton
lose an electron
both a and d
Who is credited with the concept that geological changes are gradual and consistent over time?
Hutton
William Smith
Darwin
Werner
Wegener
You find a dark igneous rock with very small crystals that require a microscope to see. What does this indicate about the rock's formation?
It formed slowly deep underground.
It formed quickly deep underground.
It formed slowly on the Earth's surface.
It formed quickly on the Earth's surface.
It was expelled as ash and later solidified.
What is the name of the boundary where two tectonic plates move horizontally past each other?
convergent
divergent
transform
The Himalayas are an example of
a continental-continental convergent plate boundary.
an oceanic-continental convergent plate boundary.
a transform plate boundary.
an oceanic-oceanic divergent plate boundary.
Where does seafloor spreading primarily occur?
continental shelves.
oceanic trenches.
mid-ocean ridges.
abyssal plains.
island arcs.
What is the term for a landform created by sediment deposition at the mouth of a river?
estuary
delta
floodplain
meander
oxbow lake
What is the stable interior part of a continent called?
Shield.
platform.
orogenic belt.
craton.
greenstone belt.
Which type of plate boundary is characterized by the creation of new oceanic crust?
a continental-continental convergent plate boundary.
a transform plate boundary.
an oceanic-oceanic divergent plate boundary.
a continental-continental divergent plate boundary.
an oceanic-continental convergent plate boundary.
Which principle explains that sedimentary layers extend in all directions until they thin out or encounter a physical barrier?
principle of original horizontality
principle of superposition
principle of lateral continuity
principle of cross-cutting relationships
principle of uniformitarianism
Neptune is considered a __________ planet.
terrestrial
Jovian
What type of metamorphism occurs due to the heat and fluids from a nearby magma body?
orogeny
contact metamorphism
burial metamorphism
nonconformity
regional metamorphism
Which ancient landmass included parts of present-day North America, Greenland, and parts of northwestern Scotland during the Precambrian era?
Laurasia
Laurentia
Baltica
Gondwana
Eurasia
Who is credited with the theory of continental drift, which proposed that continents move across the Earth's surface over geological time?
Alexander du Toit, 1937.
Frank Taylor, 1910.
Alfred Wegener, 1912.
Snider- Pelligrini, 1858.
Harry Hess, 1962.
What was the name of the supercontinent that existed during the Late Paleozoic and included most of Earth's landmasses?
Laurasia
Pangaea
Rodinia
Gondwana
Baltica
Which process is believed to have significantly contributed to the increase of oxygen in the Earth's atmosphere during the Proterozoic era?
Reduction in volcanic activity.
Shrinking of oceanic bodies.
Photosynthesis by cyanobacteria.
Emergence of terrestrial flora.
None of these.
What is the term for a distinct layer of sedimentary rock that can be mapped and has clear boundaries?
stratum
intrusive
formation
mineral
zone
While exploring a canyon, you notice a dike of igneous rock that intersects the horizontal layers of sedimentary rock. The igneous rock is ___________ than the sedimentary rock.
younger
older
What is the term for the origin of life from inorganic substances?
fermentation
plate tectonics
cellular respiration
abiogenesis
volcanism
Due to the effects of heat and pressure altering the isotopic composition, _________ rocks are often challenging to date precisely using radiometric methods.
igneous
sedimentary
metamorphic
The branch of science concerned with the study of fossils:
geology
genetics
paleontology
ecology
anatomy
theory
The decay rate of carbon 14 is measured in _________ years.
5730
40000
4.5 billion
48.8 billion
704 million
A surface within the rock record representing a period of nondeposition or erosion, separating younger strata from older rocks:
discontinuity
fossil
stratification
erosion
unconformity
The process by which organisms disturb sediment layers:
erosion
compaction
bioturbation
cementation
weathering
Determining the sequence of geologic events by examining rock layers is known as
stratigraphy
catastrophism
relative dating
radiometric dating
none of the above
What principle is used in radiometric dating to determine the age of rocks?
The layering of sedimentary rocks.
The decay rate of unstable isotopes.
The alignment of magnetic minerals.
The fossil content within the rock.
The growth rings in trees.
The transformation of loose sediment into a solid sedimentary rock is known as
crystallization.
cementation.
lithification.
erosion.
weathering.
Which scientist proposed that the age of the Earth could be determined by its cooling rate, estimating it to be between 20 and 400 million years?
Hutton
Joly
Bishop Ussher
Lyell
Lord Kelvin
The type of cell division that results in gametes, such as sperm and eggs, with half the usual number of chromosomes is called:
mutation
mitosis
meiosis
natural selection
evolution
After two half-lives, a radioactive element will have _________ of its original parent atoms.
1/2
1/4
1/3
1/8
1/16
What is the term for a distinct layer of sedimentary rock that can be identified and mapped across a region?
stratum
intrusion
formation
layer
zone
Graded bedding is typically observed when
sediment layers are eroded by water currents.
sediment is deposited on a gentle slope.
turbidity currents deposit coarse particles followed by finer particles.
layers of sediment are disrupted by tectonic activity.
turbidity currents deposit fine particles followed by coarser particles.
What are the surfaces called that mark the boundaries between different sedimentary layers?
stratigraphic columns
unconformities
bedding planes
geological formations
stratigraphic systems
What is the name of the surface that forms when younger sedimentary rocks are deposited on top of older igneous or metamorphic rocks?
angular unconformity.
disconformity.
nonconformity.
hiatus.
bedding plane.
What term is used for volcanic materials that are ejected during an explosive eruption?
igneous
extrusive
pyroclastic
lithification
sedimentary
Which sedimentary environment is typically associated with large-scale cross-beds exceeding 10 feet in height?
lake
desert dune
delta
fluvial
glacial
What is the primary division of geologic time, during which a system of rocks was formed?
epoch
biozone
period
series
unconformity
The initial framework of the geologic time scale was primarily established by
observations of changes in fossil records.
the principles of natural selection.
analysis of mineral isotopes.
radiometric dating of rock layers.
distribution of minerals across regions.
Which process is believed to have played a crucial role in the evolution of complex cells from simpler ones?
endosymbiosis
abiogenesis
stratification
progradation
outgassing
Which eon is characterized by the Earth's initial cooling and solidification?
Archean
Eoarchean
Hadean
Paleoarchean
Proterozoic
You find a dark igneous rock with very small crystals that require a microscope to see. What does this indicate about the rock's formation?
It formed slowly deep underground.
It formed quickly deep underground.
It formed slowly on the Earth's surface.
It formed quickly on the Earth's surface.
It was formed from volcanic ash that later solidified.
A coastal feature formed by the accumulation of sand, often found parallel to the shore and separated by a body of water:
spit
barrier island
headland
estuary
lagoon
The age of the oldest ocean floor is nearly _________ years.
300000
4.6 billion
70000
180 million
3.96 billion
What type of bond involves the sharing of electron pairs between atoms, commonly found in substances like diamond?
covalent bond
metallic bond
malleable
orogeny
ionic bond
Cells that do not have a nucleus enclosed within membranes are called:
prokaryotic
eukaryotic
Which of the following is not a rank in the Linnaean taxonomy system?
class
family
genus
domain
tribe
What is the term for the time it takes for half of a radioactive substance to transform into a stable form?
igneous
geochronology
half-life
sediment
absolute age
Which of the following characteristics is not associated with the asthenosphere?
It is located below the lithosphere.
It is composed of solid rock.
It flows slowly over geological time.
It facilitates the movement of tectonic plates.
It shares the same material as the upper mantle.
What is the term for an unconformity where sedimentary layers are deposited on top of eroded igneous or metamorphic rocks?
nonconformity
disconformity
guide fossil
transgression
angular unconformity
Which fossil discovery supported the theory of continental drift?
Glossaurus.
Pecopteris.
Neuropteris.
Glossopteris.
Messopteris.
An organized group of components that work together to form a complex whole:
system
hypothesis
theory
uniformitarianism
scientific method
