Earth's Surface Review

How does geologic change happen according to uniformitarianism?

• Every few years
• Suddenly
• Gradually
• After an Earthquake

The traces or remains of an organism that lived long ago is a _________.

• geology
• fossil
• sediment
• unconformity

The idea that geologic change happens suddenly is called _______________.

• uniformitarianism
• catastrophism
• deposition
• erosion

Scientists use evidence from rock layers to compare with other layers to determine approximate age. This method of dating is called _______.

• radiometric dating
• estimate dating
• fossil dating
• relative dating

What can fossils show us?

• Past life
• Changes in the environment
• The age of rock layers
• All of the above

An example of uniformitarianism is ___________________.

• an asteroid hitting the Earth.
• a volcano erupting.
• an earthquake.
• gradual erosion like in the Grand Canyon.

Which of the following events is a catastrophe?

• An average rainfall
• An asteroid hitting the Earth
• Gradual erosion
• Deposition

Use the diagram below. According to superposition, which rock layer is the youngest?

• Layer A
• Layer B
• Layer D
• Layer E

The idea that geologic processes occurring now are the same as those in the past is called _____________ .

• paleontology
• modern geology
• uniformitarianism
• catastrophism

Catastrophism says that Earth is formed by ___________.

• Sudden changes
• Slow, gradual changes
• Both sudden and gradual changes
• Erosion