New moon, quarter moon, full moon are what we call the lunar phases. These are consequences of the motions of the Sun, Earth and moon. Three dimensional models are useful because the face of the moon that catches the light of the Sun depending on their position at any given time could be depicted well. Circular models would be the best visuals for the lunar phases.
Answer:
regional metamorphism is a metamorphism that is affecting rocks over an extensive area as a result of the large-scale action of heat and pressure.
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Ionic, since electrons are transferred.<span />
