Relative Dating and Rock Layer Formation

What is the definition of geologists?

• Scientists who study the origin, history, and the structure of the Earth.

• People who study the stars and planets.

• Individuals who analyze economic trends.

• Experts in the field of computer science.

What is the fact that geologists need to know?

• Age of rocks

• Color of rocks

• Weight of rocks

• Location of rocks

What are the two ways to communicate age?

• Relative age, Absolute age

• Chronological age, Estimated age

• Biological age, Historical age

• Physical age, Mental age

What does relative age express?

• Express the order, sequence of events. Tells if it is younger or older.

• Express the exact age in years.

• Express the age in terms of centuries.

• Express the age in terms of decades.

What is absolute age?

• Numerical or absolute time. Includes a number and a unit of time such as years, days, or seconds.

• A relative measure of time based on events.

• A subjective interpretation of time.

• A philosophical concept of time without measurement.

What is the principle of uniformitarianism?

• Geologic processes that occur today are similar to those that have occurred in the past. Same processes that we see today have been occurring since the Earth formed.

• Geologic processes are random and have no pattern over time.

• The Earth's surface is shaped by sudden, short-lived, violent events.

• The history of Earth is determined by supernatural forces.

How does uniformitarianism help scientists?

• It provides a framework for understanding geological processes.

• It disproves the theory of evolution.

• It supports the idea of a young Earth.

• It is unrelated to scientific research.

What is relative dating?

• A method to determine the age of rocks by comparing them with other rocks

• A technique to find the exact age of a fossil

• A process to date rocks using radioactive isotopes

• A way to measure the age of the Earth

Which principle states that the oldest rocks are on the bottom in undisturbed rock layers?

• Superposition

• Original Horizontality

• Cross-Cutting Relationships

• Lateral Continuity

According to the principle of original horizontality, how are most rock-forming materials deposited?

• Horizontally

• Vertically

• Diagonally

• Randomly