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Chapter 5 Test
Review for Chapter 5 Test
| Question | Answer |
|---|---|
| The youngest rocks on the ocean floor are located at | mid-ocean ridges |
| The crust and upper mantle make up Earth's | lithosphere |
| Scientists have observed that the plates move at rates ranging from 1 cm to 12 cm per | year |
| Plates of the lithosphere float on the | asthenosphere |
| The result of plate movement can be seen at | plate boundaries |
| This mountain range formed by the collision of the Indo-Australian Plate and the Earasian Plate. | Himalayan |
| Plates move apart at this boundary | divergent |
| The alignment of iron minerals in rocks when they are formed reflects the fact that Earth's ____ has reversed itself several times in the past. | magnetic field |
| The Glomar Challenger provided support for the theory of plate tectonics by providing | samples of older rock found far from mid-ocean ridges |
| Scientists believe that differences in ____ cause hot, plasticlike rock in the asthenosphere to rise toward Earth's surface. | density |
| Active volcanoes are most likely to form at | convergent oceanic-continental boundaries |