<span>Breakwaters, seawalls, and groins are all examples of shoreline structures.
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Shoreline structures are built with the purpose to change ocean waves, sand movements and currents. Breakwaters are built to minimise the intensity of wave action reducing erosion in the coast or and creating a safe harbourage for ports. A seawall is a defence wall constructed to protect human habitation, or other areas of human interest, from the action of tides or waves maintaining the coastal area where the wall is unchanged. <span>A </span>groin structure<span> built from an ocean shore perpendicular to the shoreline</span><span> that stops the water flow and limits </span>sediment's movement<span>. It is constructed to prevent great movement of sediments and erosion.</span>
The "short-term effect" of something is the immediate result of something. For example, a short-term effect of drinking alcohol would be the slurring of speech, because that happens soon after you get drunk.
The "long-term" effect of something is the gradual consequence of something. For example, again using alcohol, if you drank large quantities of alcohol consistently for 10 years, the long-term effect would be liver damage, because alcohol can harm the liver in large quantities.
I hope this helps!
Answer: 1. very high annual rainfall
2. high average temperatures
3. high levels of biodiversity
Explanation: