EARTH SCIENCE
OCEANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a man made structure made of piles of rock that the current cannot move.
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A naturally forming structure of plankton.
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Either A or B
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None of the above
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Detailed explanation-1: -Jetties are large, man-made piles of boulders or concrete that are built on either side of a coastal inlet. Whereas groins are built to change the effects of beach erosion, jetties are built so that a channel to the ocean will stay open for navigation purposes.
Detailed explanation-2: -A jetty is a long, narrow structure that protects a coastline from the currents and tides. Jetties are usually made of wood, earth, stone, or concrete. They stretch from the shore into the water. Currents and tides of an oceancan gradually wash away a beach or other features along the coastline. This is called erosion.
Detailed explanation-3: -What is the Difference Between a Jetty and a Breakwater? If you have been wondering about the difference between a jetty and a breakwater, the difference is that a jetty redirects or interrupts the longshore current to prevent erosion.
Detailed explanation-4: -Groin jetties: Groin jetties are short jetties that extend perpendicular to the shore and are typically used to reduce erosion and protect beaches. Finger jetties: Often used in marinas, finger jetties extend from the shore and are used to create a protected area for boats and ships. More items •23-Jan-2023