Answer:
Russia–Ukraine relations refer to the bilateral ties between the Russian Federation and Ukraine. Following the Ukrainian Revolution of Dignity in 2014, Ukraine's Crimean Peninsula was occupied by unmarked Russian forces, later being annexed by Russia, while pro-Russia separatists simultaneously engaged the Ukrainian military in an armed conflict for control over eastern Ukraine; these events marked the beginning of the ongoing Russo-Ukrainian War. In a major escalation of the conflict on 24 February 2022, Russia launched a full-scale invasion of the Ukrainian mainland across a broad front, causing Ukraine to sever all formal diplomatic ties with Russia.
Explanation:
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A should be the correct answer. But more information could be helpful.
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Geography had a profound impact upon Ancient Greece. The deserts brought heat, the coastline helped with trade, and the oases brought grass & water. The deserts, coastline, and oases of Arabia helped shape the Arab way of life.
The correct answer is b. - tsunamis.
Tsunami is a Japanese word meaning harbor wave.
Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea. This usually happens deep out in the ocean. The earth movement causes a displacement of water in the form of a large ripple which begins to move inland at tremendous speed.
There is no dramatic increase in height of the wave, but as it moves toward the coast, it builds up to a higher and higher height as the ocean becomes shallower and shallower till when it makes land fall, the wave may be dozens of feet high.