Question

Barrier islands are formed when ____.

Question 8 options:

the ocean floor is uplifted

the wind continuously blows sand out to sea

sand is repeatedly picked up, moved, and deposited by ocean currents

sand bars are worn away

Answer 1

C

Step-by-step explanation:

The offshore bar theory proposes that individual barrier islands formed when waves stirred up sediment from the sea floor. When the waves broke, their energy was used to deposit sand into a bar along the sea floor. ... Over time, storms would break up the spit's connection with the mainland, forming a barrier island.