How does the affect of a tsunami make the Earth's shape different?

Answer 1

Despite the vast amount of premature erosion and flooding due to all the oceanic water hitting the coast lines . A tsuanmi is caused generally caused by a tectonic plate shift in the ocean where the giant continental plates shift and go over one another sometimes causing a severe amount of geological uplifting which can reshape the oce

Answer 2

The land of earth after tsunamis can change and make the landscape of countries much broader and can make countries join to others, such as how do you think China and Russia joined... It was from the tsunami in 875 AD where it struck China and made it larger and joined onto southern Russia.

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No. If you are thinking of Continental Drift then the largest, and most, tsunamis are indeed an effect of drift mechanisms (Plate Tectonics), but a tsunami cannot link continents. If anything all they can do is cause some coastal erosion or move sandbanks about. The land areas we call China and Russia have been part of the same continent for very many millions of years!