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Cont Drift/Plate Tec
Continental Drift and Plate Tectonics
| Question | Answer |
|---|---|
| The continental drift hypothesis suggests that the _____. A)continents moved due to changes in Earth's orbital velocity B)present-day continents of South America an Africa once fit together like puzzle parts | B |
| According to the continental drift hypothesis, the continents were once joined together in a single landmass called _____. A) Africa B) Eurasia C) Hawaii D) Pangaea | D |
| All of the following have been used as evidence for the continental drift hypothesis EXCEPT _____. A) climate clues B) continental shape C) convection in the mantle D) fossils | C |
| According to a hypothesis called _____, South America and Africa were once joined at the mid-Atlantic ridge. A) continental drift B) convergence C) faulting D) subduction | A |
| The geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion is the theory of _____. A) subduction B) plate tectonics C) sea-floor spreading D) deep-ocean trenches | B |
| In which part of Earth are tectonic plates found? A) Lithosphere B) Asthenosphere C) Mantle D) Core | A |
| The layer over which the tectonic plates float is the _____. A) asthenosphere B) core C) crust D) lithosphere | A |
| The movement of the molten rock below the crust is the most likely reason for _____. A) the creation of minerals B) the rotation of the Earth C) the movement of the Earth's plates | C |
| The primary cause of tectonic plate movement is _____. A) the rotation of Earth on its axis B) heat from the Sun warming Earth C) the gradual sinking of Earth's crust D) convection currents beneath Earth's crust | D |
| The movement of the tectonic plates is caused by _____. A) oceanic currents B) convection currents in the asthenosphere C) volcanoes on the mid-ocean ridges D) earthquakes along plate boundaries | B |
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ljordan@lexington1.n