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29 questions
Which of the following is an example of a geologic process that can be described by the principle of uniformitarianism?
an asteroid impact
a mass extinction
steady erosion
a large earthquake
Which of the following is a type of event that could cause immediate changes in Earth's global climate?
asteroid impact
continental drift
fossil formation
mass extinction
Which of the following types of geologic evidence could result from an asteroid impact on earth's surface?
alternating layers of lava and volcanic ash erupted by a volcano
fossils that show a steady rate of evolution in a certain type of organisms
petrified trees that have tree rings showing several years of stunted growth
ice cores that show a gradual change in the carbon dioxide content in the atmosphere
Sometimes a fossil is formed as a result of the movement of an organism in soft sediment. Which of the following are two kinds of trace fossils?
shells
tracks
burrows
petrified fossils
The composition of sedimentary rock shows the source of the sediments that makes up the rock. Which of the following would provide the best evidence of how the rock formed?
The rock's age
The rock's color
The rock's texture
The rock's fossil content
The figure above shows on type of physical evidence that scientists use to understand Earth's past. Imagine that you found this evidence on a mountaintop. What could conclude from your discovery?
The organism is now extinct
This fossil is older than the mountaintop
The mountaintop is made of metamorphic rock
The rocks on this mountaintop were once at the bottom of an ocean
In the 1830's, an English scientist proposed the idea of uniformitarianism to describe the process of geologic change on Earth. Which of the following is most accurately described by uniformitarianism?
erosion
extinction
an earthquake
a volcanic eruption
Florida was once part of Gondwanaland, a supercontinent that later divided into Africa and South America. Which statement best describes this process?
A volcanic eruption likely caused Gondwanaland to divide.
The continents have been moving throughout Earth's history.
Weathering and erosion eventually broke Gondwanaland apart.
Africa and South America go through cycles of dividing and colliding.
A team of scientists is searching for specimens to understand how Earth's climate has changed in the past. The black boxes in the figure below show where this team has drilled to obtain such specimens. What were these scientists drilling for?
ice cores
surface landforms
sea-floor sediments
fossil's preserved in amber
In 1897, a British scientist proposed that Earth was between 20 and 400 million years old. Based on radiometric dating, scientists now propose a different age for Earth. Based on the most current radiometric dating data, about how old is Earth?
40 billion years old
20 billion years old
4.6 billion years old
4.6 million years old
Earth's surface features slowly change over time. For example, sharp, jagged mountain ranges become lower and more rounded over time. What factor or factors is/are responsible for this change in their shape?
movement of continents
weathering
erosion
collision between continental plates
The figure above shows and example of a geologic change that supports the principle of uniformitarianism. What geologic change is shown in the figure?
erosion
abrasion
volcanism
deposition
Florida State University has a large collection of ice cores taken from Antarctica. What can scientists learn by studying these ice cores?
history of Earth's climate
how continents have moved
how new species have evolved
major changes that have taken place on Earth's surface
Trace fossils are much more common than body fossils. Which of the following best explains why trace fossils are more common?
Trace fossils takes less time to form.
Body fossils require soft sediments to form.
An organism is more likely to live on soft sediment where trace fossils form.
A single animal can leave thousands of traces in its lifetime but will leave only one body when it dies.
Sometimes a fossil is formed as a result of the movement of an organism in soft sediment. What type of fossil is this called?
bone fossil
trace fossil
frozen fossil
petrified fossil
In the 1830's, an English scientist proposed the idea of uniformitarianism to describe the process of geologic change on Earth. Which of the following words is most closely associated with uniformitarianism?
rare
sudden
gradual
catastrophic
The composition of sedimentary rock shows the source of the sediment that makes up the rock. Which of the following is a type of sedimentary rock that forms from once-living plants and animals?
quartz
calcite
limestone
sandstone
At one time, several kinds of camels lived in Florida. The evidence comes from fossils found in Florida. Which of these objects would be a fossil that shows that camels once lived in Florida?
sinkholes formed by a retreating glacier
sedimentary rock that formed long ago
crystal formation suspended from the ceiling of a cave
remains of organisms preserved by geologic processes
_____________ is the belief that the same processes that changed the Earth in the past, continue to work in the same way today to change Earth and will continue to change the Earth in the same way in the future.
uniformitariamism
petrification
caprolite
plate tectonics
A(n) _____________ is the trace remains of an organism that lived long ago, most commonly preserved in sedimentary rock.
fossil
ice core
petrification
caprolite
The weather conditions in the area over a long period of time refers to
climate
atmosphere
global winds
seasons
A fossilized structure that formed in sedimentary rock by animal activity on or in soft sediment is considered a(n)
sediment fossil
trace fossil
fossil record
This happens when an organism's tissues are replaced by minerals; or refers to the process by which organic matter exposed to minerals over a long period of time turned into a stony substance.
caprolite
fossil record
petrification
ice core
_____________ is a piece of fossilized animal dung.
caprolite
fossil
excretory fossil
uniformitarianism
A cylindrical sample that is typically removed from an ice sheet, most commonly from the polar ice caps of Antarctica, Greenland, or from high mountain glaciers elsewhere. These contain an abundance of information about Earth's climate. These are called
fossils
trace fossils
ice cores
fossil record
A(n) _____________ shows all the fossils that have been discovered on Earth that show part of the history of life on Earth.
fossil record
geologic time scale
uniformitarianism
trace fossils
pathways or shelters made by animals that dig into the sediment are called
underground mazes
burrows
tracks
caprolite
Which of the following are ways in which scientists can study about Earth's climate history? Choose all that apply.
Ice cores and tree rings
sea-floor sediments
petrified materials
caprolite
In which of the following ways can organisms become preserved in fossils? Choose all that apply.
Trapped in Amber and Asphalt (tar)
buried in rock or frozen in ice
Petrificaton
Tracks, burrows and caprolite
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