Quiz about 8th Geological Time Scale - Fossil Record

Question 1

Eras are subdivided into ________.

Accepted Answer

periods

Answer

eons

Answer

epochs

Answer

land bridges

Question 2

What is an eon?

Accepted Answer

Long span of geologic time. In formal usage, the longest portions of geologic time.

Answer

the basic unit of the geologic time scale; during these spans of time specific systems of rocks were formed.

Answer

very long span of geologic time; in formal usage, the second longest portions of geological time.

Answer

Unit of geological time during which a rock series is deposited.

Question 3

Division of periods in geological history

Accepted Answer

Epoch

Answer

Eons

Answer

Era

Answer

Law of Superposition

Question 4

The second broadest category of geologic time is______________?. The Cenozoic is one of them.

Accepted Answer

era

Answer

eon

Answer

epoch

Answer

period

Question 5

Which fossil is the youngest?

Accepted Answer

fossil C

Answer

fossil A

Answer

fossil B

Answer

fossils A and B are the same age

Question 6

What is the importance of studying fossils?

Accepted Answer

to provide information about how life and environmental conditions may have changed

Answer

to provide information about how current life forms would exist in previous environmental conditions

Answer

to provide information about how previous life forms would exist in current environmental conditions

Question 7

Chronological chart that shows the events and past lives of organisms in Earth's history.

Accepted Answer

Geological Time Scale

Answer

Cambrian Explosion

Answer

Eon

Answer

Era

Question 8

The Geologic Time Scale is a record of what?

Accepted Answer

the known history of rocks and fossils

Answer

old geologists

Answer

sweet geology music

Answer

a list of every living thing ever

Question 9

Which is the most recent era of time- the one that we are currently in?

Accepted Answer

Cenozoic

Answer

Mesozoic

Answer

Paleozoic

Answer

Precambrian

Question 10

Describes a group of living things that are no longer living.

Accepted Answer

extinct

Answer

fossil

Answer

endangered

Answer

dinosaur

Question 11

6. A branch of geology dealing with the arrangement of sedimentary rock layers or strata?

Accepted Answer

Stratigraphy

Answer

Geography

Answer

Photography

Answer

Biography

Question 12

History of life as documented by all fossils, preserved in sedimentary rock strata is known as the _________________________.

Accepted Answer

Fossil record

Answer

Rock record

Answer

Geology record

Answer

Petrified record

Question 13

Scientists have found large groups of fossils of marine organisms on mountaintops. What does this tell scientists about the past?

Accepted Answer

That these rocks were once below the surface of an ocean

Answer

That these rocks must have been moved there by some one else.

Answer

That these rocks were always above the surface of an ocean

Answer

That these organisms left the ocean and climbed to the top of an inland mountain to die

Question 14

Scientists can estimate the ages of rock if they contain certain __________.

Accepted Answer

index fossils

Answer

carbons

Answer

sediments

Answer

minerals

Question 15

According to the diagram, which of the following statements is true?

Accepted Answer

Fossil C is younger than Fossil D

Answer

Fossil C and D are the same age.

Answer

Fossil B is youngest

Answer

Fossil A is oldest.

Question 16

How can fossils tell us about Earth's past?

Accepted Answer

All of the above are true.

Answer

Fossils give clues about environmental changes where the organism lived.

Answer

Fossils can be used to date the time period of rocks and rock layers when the organism lived.

Answer

Fossils can give clues of changes in the organism's body structure over time.

Question 17

In which of the following eras did humans first appear in the fossil record?

Accepted Answer

Cenozoic

Answer

Precambrian

Answer

Paleozoic

Answer

Mesozoic

Question 18

Which geological event is OLDER? Fault E or Intrusion D?

Accepted Answer

Intrusion D

Answer

Fault E

Question 19

Which of the layers is the oldest?

Accepted Answer

Strata C

Answer

Fault E

Answer

Intrusion D

Answer

Strata A

Question 20

Relative dating of rock layers tells us that the deeper we dig, _______.

Accepted Answer

the older the rocks get

Answer

the younger the rocks get

Answer

the smellier the rocks get

Answer

the harder the rocks get

Question 21

The very first organisms on Earth were

Accepted Answer

bacteria

Answer

viruses

Answer

animals

Answer

plants

Question 22

What type of rock do fossils form in?

Accepted Answer

Sedimentary

Answer

Igneous

Answer

Metamorphic

Answer

Classic

Question 23

What are the many divisions in the geological time scale based on?

Accepted Answer

sudden changes in the fossil record

Answer

changes in the fossil record every billion years

Answer

changes in the fossil record every million years

Answer

gradual changes in the fossil record

Question 24

Select ALL characteristics of index fossils

Accepted Answer

Distinctive

Accepted Answer

Widespread

Accepted Answer

Short-lived

Answer

Found in multiple rock-strata

Question 25

Select ALL possible ways that lead to rock strata formation

Accepted Answer

Compaction and cementation

Accepted Answer

Sedimentation

Accepted Answer

Deposition

Answer

Sterification

Question 26

After each labeled point, what does the large decrease in height (Y-value) represent? This phenomenon is a primary way that scientists developed the boundaries between time periods.

Accepted Answer

Massive loss of species

Answer

Loss of rock strata

Answer

Massive increase in species

Answer

Decreased number of fossils

8th Geological Time Scale - Fossil Record

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