<span>A galaxy that does not have the clearly defined shape and structure of typical elliptical, lenticular, or spiral galaxies. Irregular galaxies typically contain large amounts of gas and dust, and their stars are often young.</span>
A caldera will form; collapse calderas are formed when the now unsupported rock that forms the roof of the magma chamber beneath the volcano collapses and forms a large crater.
Answer: D. Shipping technologies advanced immediately
The answer is B) 50. It's actually about 55 miles, but 50 is the closest answer. <span>Russia and Alaska are divided by the Bering Strait, which is about 55 miles at its narrowest point.
~Deceptiøn
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False, it's the rotation of earth that creates the day and night