Geology: Our Dynamic Earth Introduction 0.0 / 5 ? GeologyMidterm ReviewUniversityNone Created by: rebeccakirbyyCreated on: 23-10-19 02:30 Most scientists argue that the greatest environmental problem facing the world today is overpopulation 1 of 5 The Big Bang took place approximately _______ years ago 15 billion 2 of 5 The age of the universe is estimated by: the rate at which galaxies are moving away from one another 3 of 5 At the moment of the Big Bang there was no ________, there was only ________. matter, energy 4 of 5 The terrestrial planets are Mercury, Venus, Earth and Mars 5 of 5
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