1) A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time. a) fault b) unconformity c) relative dating 2) any method of determining whether an event or object is older or younger than other events or objects a) unconformity b) relative dating c) fault 3) any method of measuring the age of an object or event in years a) absolute dating b) fault c) index fossil 4) A long cylinder of ice obtained from drilling through ice caps or ice sheets; used to study past climates. a) igneous b) ice core c) metamorphic 5) Rocks that undergo a physical change due to extreme heat and pressure a) metamorphic b) sedimentary c) lithosphere

GEOLOGY

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