8th Clues to Earth's Past Chapter 11

Multiple Choice

Why is it important to study catastrophic events in Earth's history?

• To understand how life on Earth has changed over time

• To predict future volcanic eruptions

• To learn about the formation of mountains

• To discover new species of plants

Multiple Choice

Which observation led James Hutton to propose that the Earth is much older than a few hundred years?

• The presence of fossils in rocks

• Erosion observed on his farm

• The discovery of petrified wood

• The study of dinosaur bones

Multiple Select

Which of the following are necessary conditions for fossil formation?

• Organism must have hard parts

• Organism must be buried quickly

• Organism must be exposed to sunlight

• Organism must be encased in amber, tar, or cement

Multiple Choice

What happens to an organism's tissues during the formation of carbon films?

• They are replaced by minerals

• They are forced out by heat and pressure

• They are buried in amber

• They are frozen

Multiple Choice

Which type of fossil is formed when sediment hardens around a buried organism and the organism decays, leaving an imprint or impression?

• Mold fossil

• Cast fossil

• Trace fossil

• Amber fossil

Multiple Select

Which of the following are examples of trace fossils?

• Footprints

• Nests

• Tracks

• Bones

Multiple Choice

Which principle of relative age dating states that younger rock layers are always on top unless disturbed?

• Original Horizontality

• Superposition

• Lateral Continuity

• Cross-Cutting Relationships

Multiple Choice

Which of the following principles states that sediments are deposited in large, continuous sheets in all lateral directions?

• Superposition

• Original Horizontality

• Lateral Continuity

• Inclusions

Multiple Select

Select all principles that help geologists compare the ages of rock layers by relative age.

• Superposition

• Original Horizontality

• Lateral Continuity

• Cross-Cutting Relationships

Multiple Choice

Which process is responsible for creating gaps in the rock record, as shown in the images and described in the text?

• Weathering and erosion

• Volcanic activity

• Earthquakes

• Glacial movement

Multiple Select

Which of the following are types of unconformities?

• Disconformity

• Angular unconformity

• Nonconformity

• Conformity

Multiple Choice

In the process of radioactive decay, what happens to the extra neutron in hydrogen-3 to form helium-3?

• It decays and forms a proton

• It is absorbed by the nucleus

• It is ejected as radiation

• It combines with another neutron

Multiple Choice

How did early scientists explain the presence of fossils according to the theory of catastrophism?

• They believed fossils formed gradually over time.

• They thought great, sudden disasters killed organisms that became fossils.

• They believed fossils were created by supernatural forces.

• They thought fossils appeared due to climate change.