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Explanation:
When a destructive wave hits a coastline, it causes the washing away of the coastline and erosion of the beach fronts.
When a constructive wave hits a coastline, new sediments are deposited there.
Coastline is an area along the shore that straddles between the continent and the ocean.
A destructive wave is a very high energy wave that moves materials from the coast in to the ocean. They cause the washing away of the ocean fronts.
A constructive wave are usually of low energy. They bring materials landward more than towards the ocean.
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The answer is National security because the citizens need to know that they are being protected, and usually also how they are being protected. But the government often needs so measure of secrecy in order to protect National Security. If the government were to tell citizens exactly how they were being protected and someone posted it onto the internet it would severely compromise that protection. However people do not generally seem to understand that and tensions become heated between the two groups. Both sides reasons are perfectly legitimate, but one outweighs the other by knowledge. The answer is B.
Answer:
Unfavourable climate
Explanation:
Africa mainly in the Northern parts face a problem of unfavourable climate is too much sunshine that leads to drought and starvation
A seasonal wind in southeast asia