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6-10
Forces Shaping Earth
Question | Answer |
---|---|
the innermost layer of Earth's interior that is mostly solid iron | inner core |
lies above the inner core and is made of molten metal | outer core |
the largest layer of Earth's interior | mantle |
Earth's outermost layer | crust |
the rigid upper part of the Earth's mantle and the crust | lithosphere |
sections of the Earth's crust that move around on the plastic like asthenosphere | plates |
large fractures in rocks along which movement occurs | faults |
when one plate sinks underneath another plate | subduction |
mountains made of huge blocks of rock that are separated from surrounding rock by faults | fault-block mountains |
mountains formed by the folding of rock layers caused by compressional forces | folded mountains |
mountains formed when forces inside Earth push up the crust | upwarped mountains |
mountains that form when layers of lava pile up to form a cone-shape | volcanic mountain |
the principle that Earth's lithosphere floats on a plasticlike upper part of the mantle called the asthenosphere | isostasy |