Environmental Science Final Exam Spring 2024

A record of the geologic events and the evolution of life forms as shown in the rock and fossil record.

• Geologic Time Scale

• Era

• Period

• Index Fossil

fossil that is useful for dating and correlating the rock layer in which it was found.

• Geologic Time Scale

• Eras

• Periods

• Index Fossil

An animal without a backbone

• Invertebrate

• Vertebrate

• Amphibian

• Reptile

When many types of living things become extinct at the same time

• Relative Age

• Absolute Age

• Radioactive Dating

• Mass Extinction

The basalt intrusion occurred...

• after the limestone was deposited.

• before the granite was formed.

• before the limestone was deposited.

• before all three layers were formed.

Which of the following conclusions can be drawn from the data in this diagram?

• Jellyfish and trilobites never competed for resources.

• Trilobites and dinosaurs did not live at the same time.

• Most mammals are in competition with birds for resources.

• Mammals did not appear until after the dinosaurs went extinct.

When examining rock layers, you will find the oldest layers at the bottom. Newer minerals and rock are piled on top and, over time, this creates distinct rock layers. This is called _______.

• The Law of Superstition

• The Law of Suspicion

• The Law of Horizontality

• The Law of Superposition

Earth has a ________________ year history

• 4.6 Billion

• 4.6 Trillion

• 2.6 Billion

• 2.6 Trillion

Many new groups of organisms evolved in a relatively short time in an event called the ___.

• Cambrian Explosion

• Milankovitch cycle

• Chicxulub collision

• Great Ice Age

Why did amphibians diversify so rapidly during the late Paleozoic?

• They adapted to the cold climate.

• They had little competition from other land dwellers.

• They were excellent hunters.

• They could breathe underwater.