<span>There are six if we do not count Kosovo.</span>
<span>The <u><em>most likely</em></u> cause of this volcanic activity is the release of pressure from the Earth's core through weak portions of tectonic plates.
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Answer:
Currently the accepted model on how the earth and planets in general form. Before the earth, sun and solar system were around, only tiny particles of space dust and debris were present. Something then happened to disturb these particles, possibly the explosion of a nearby star, and as a result, the sun was born.
