What Is Responsible for Increasing a Beach's Slope

question 16

Multiple Choice

What is responsible for increasing a beach's slope?

• A) The swash
• B) The backwash
• C) The biological activity
• D) The berm crest

---

Definitions:

Magnetoencephalography (MEG)

A technique for using delicate magnetic sensors on the outside of the skull to detect brain activity.

Positron Emission Tomography (PET)

A technique for creating images of brain activity by injecting a radioactive tracer into the blood and then, using a scanner, finding where in the brain the blood is being metabolized.

Substantia Nigra

A part of the brain involved in the control of movement and is associated with diseases such as Parkinson's due to its role in dopamine production.

Dopamine

A neurotransmitter in the brain that plays an important role in positive emotions and response to reward.