Earth's History / Geologic Time Review by Aiyanna Moses

Mammoths are 4.6 million years old. That is the mammoths __________ age.

• Relative

• Absolute

• Combined

• Total

Dinosaurs, small mammals, and birds are found in this time period.

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

According to the law of superposition, which statement is supported by the diagram?

• Layer C is the oldest layer.

• Layer B is younger than layer D.

• Layer D is the youngest layer.

• Layer C is older than layer A.

Which best explains a primary reason for the inability of life to exist in Earth’s early atmosphere?

• There was insufficient energy from material collisions to change their density.

• High temperatures during Precambrian time caused surface water evaporation.

• Volcanic eruptions and comet collisions added different gases to the atmosphere.

• Available oxygen was used to help create an ozone layer within Earth’s atmosphere.

Which type of rock and fossil dating gives the precise age of the rock or fossil?

• Geologic Time dating

• Absolute dating

• Relative dating

• Differential dating

Fossils that are easily recognizable, abundant, wide geographic distribution and, live a short time are what type of  fossil?

• Index Fossils

• Cast Fossils

• Trace Fossils

• Carbonized Fossils

What process do plants go through in order to absorb carbon from the atmosphere to produce oxygen?

• Cellular Respiration

• Photosynthesis

• Glycolysis

• Degeneration

 In which time period are we currently living?

• Mesozoic Era

• Paleozoic Era

• Cenozoic Era

• Precambrian Time

Which phrase describes the absolute age of a rock?

• does not provide an exact age

• is the age compared to other rocks around it

• is the number of years since it formed

• indicates whether it is younger or older than the rocks above it

Use the diagram above to answer the next question with A,B,C, or D. Which rock layer is the newest?

• A

• B

• C

• D