Unit Test — Unit test

Question 7 • KISD Earth and Space Science IC Sem B Spring 2026

Which action causes breakers?

Answer

Waves hit the shore at an angle and transport sand.

Water flows away from the shore and moves sand with it.

Underwater earthquakes cause motion throughout ocean water.

Waves meet the shore and cause the crest to spill over the trough.

Explanation

Breakers form when waves enter shallow water near the shore. The wave slows, its crest becomes too steep, and it spills forward over the trough. Therefore, the correct choice is “Waves meet the shore and cause the crest to spill over the trough.”

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