Imagine That a Helicopter Drops You Off on an Island

question 48

Essay

Imagine that a helicopter drops you off on an island. You look north and south and see a long line of active volcanic islands poking up above the ocean's waves. At what sort of plate boundary are you likely to be? What is one way that could you test this interpretation to see if it is valid?

---

Definitions:

Three-Dimensional

Pertaining to or involving three dimensions (length, width, and height), giving an object or space a sense of depth.

Brain Activity

The functioning of the brain as indicated by psychological or neurological processes.

Positron Emission Tomography

A nuclear medicine functional imaging technique used to observe metabolic processes in the body as an aid to the diagnosis of disease.

Functional Magnetic Resonance Imaging

A neuroimaging technique that measures and maps brain activity based on changes in blood flow.