Geosphere-Ocean interactions

Question 1

What process causes waves to bend and concentrate energy along headlands?

Answer 1

Refraction

Question 2

What is longshore drift?

Answer 2

Movement of sediment along the coast by wave action

Question 3

Which feature is formed by wave erosion and marks an old sea level?

Answer 3

Wave-cut platform

Question 4

What is the purpose of groins along coastlines?

Answer 4

Trap sand to slow erosion

Question 5

Which coastal structure is meant to absorb and deflect wave energy?

Answer 5

Sea wall

Question 6

What type of coast is formed when sea level rises and floods low-lying land?

Answer 6

Submergent coast

Question 7

What causes spring tides?

Answer 7

Alignment of Earth, Moon, and Sun

Question 8

What tidal pattern features two unequal high tides and two unequal low tides per day?

Answer 8

Mixed

Question 9

What is a tsunami typically caused by?

Answer 9

Underwater earthquakes

Question 10

How do tides affect Earth’s rotation over time?

Answer 10

Tidal friction slows Earth’s rotation slightly