What term denotes blocks of older rock enclosed in a body of younger igneous rock?

Which of the following geologic observations would not bear directly on working out the sequence of geologic events in an area?

Who made the first clear statement of the law of superposition? When?

The climate system consists of the ________.

When waves reach shallow water, they are often bent and tend to become parallel to the shore. This process is termed ________.

Broad, shallow depressions excavated by deflation are called ________.

Types of climate-feedback mechanisms consist of ________.

When younger sedimentary strata overlie an eroded surface of older metamorphic or intrusive igneous rocks, this is called a(n) ________.

Variations in the angle that Earth’s axis makes with the plane of it’s orbit is called ________.

One half of the atmosphere lies below an altitude of ________.