The height of a tsunami grows as it approaches a coastline primarily because
A)its wavelength shortens.
B)its energy level increases.
C)the height of the surf is added to the height of the tsunami.
D)the height of a tsunami remains constant from the time of its origin.

Question

Quizplus · Accepted Answer

As a tsunami approaches the coastline, the water depth decreases, causing the wave to slow down and its wavelength to shorten, which results in an increase in wave height.

The Height of a Tsunami Grows as It Approaches a Coastline