A Brief History of Geologic Time

What is the Geological Time Scale used for?

• To measure the age of fossils

• To bind chapters of Earth's history together

• To classify animals

• To describe weather patterns

Who published the first laws of stratigraphy?

• William Smith

• Giovanni Ardunio

• Nicolas Steno

• Charles Lyell

Which names did Giovanni Arduino use for the rock layers?

• Primary

• Secondary

• Tertiary

• Quaternary

What is the significance of fossils in determining the age of rock layers?

• They are the only evidence of life

• They help correlate ages across different locations

• They can be used to measure temperature changes

• They provide information on mineral composition

What does the term "Hadean" refer to?

• The first life forms on Earth

• The time when the Earth was inhospitable

• An era of diverse life

• The current era of mammals

What major development occurred during the Archean Eon?

• The first multicellular organisms

• The first signs of life

• The formation of continents

• The extinction of dinosaurs

Which of the following organisms is considered an index fossil for the Paleozoic Era?

• Ammonites

• Trilobites

• Dinosaurs

• Mammoths

What significant event marked the end of the Paleozoic Era?

• The formation of Pangea

• The Cambrian explosion

• The Great Dying

• The rise of mammals

What caused the K-Pg Extinction Event?

• Volcanic eruptions

• Climate change

• An asteroid impact

• The rise of mammals

What is the current era in which we live called?

• Paleozoic

• Mesozoic

• Cenozoic

• Proterozoic