<span>A. Biosphere
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Answer: 1917, two revolutions swept through Russia, ending centuries of imperial rule and setting into motion political and social changes that would lead to the formation of the Soviet Union.
Explanation:
Answer:
It should be the Panama Plate
Explanation:
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The Panama Plate is a microplate. A small tectonic plate sandwiched between the Cocos Plate and Nazca Plate