You didn't give your choices but sin 21 equals 0.358.
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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Waves when approaching the shore brainly.com/question/5997157
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It is impossible to build a drainage system on the outside of the Sao Francisco river as buildings are built on the outside of the foundation.
The Subarnarekha is developing a small drainage system.
The Amazon basin is the largest drainage basin in the world.
The Urugay drainage system includes the greater part of southeastern Brazil, Paraguay, southeastern Bolivia and northern Argentina
So i would suggest putting the Amazon as it is the most common known and largest. Remember to use geographical terms!
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