D. Some European rivers act as international borders.
Answer:
<h3>that is my answer hopes it helps you wish you all the best</h3>
Explanation:
<h3>Some of the environment changes are caused by the slow movement of the continents (plates tectonics) and take a millions of years. Most of the changes or cause by the human influences and natural ecological process. </h3>
The seismic waves that shake the ground in a vertical fashion are Rayleigh waves-surface waves.
Rayleigh waves-surface waves move in an elliptical motion. They can be both vertical and horizontal component of motion in the direction of wave propagation. They are caused by earthquakes.
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Brazil's coastline is 7,491 km and Argentina's coastline is 4,989 km. If you subtract, it will be 2,502