Which of the following shows the four time divisions listed from oldest to youngest?

Which of the following methods of determining the age of materials is a radiometric dating technique?

The time it takes for one quarter of a group of a radioactive element’s isotopes to decay is called the “half life.”

Which of the following statements is FALSE? The principle of:

A radioactive isotope of the element potassium decays to produce argon. If the ratio of argon to potassium is found to be 7:1, how many half-lives have occurred?

The deformation described in the article results from which type of stress?

The crust in the Basin and Range Province of Nevada, Utah, and Arizona is stretching; therefore, fault movement in this region must be:

You’re looking at a fault trace in the field. You observe a polished surface, with linear grooves on it, and fine powder along it. In more technical terms, what are you seeing?

Identify the FALSE statement. Mountains don’t get infinitely high or exist forever because:

Identify the structure that makes this pattern of rock layers on the ground surface: parallel stripes, showing bilateral symmetry across a mid-line (hinge), with rock getting older as you move outward from the hinge.