To find the absolute oldest rocks in California, where would you look?Group of answer choicesSierra Nevada MountainsCoast RangesPeninsular RangesBasin and RangeKlamath Mountains

Rock layers at the bottom of a geologic deposit are theMultiple choice question.heaviest.youngest.oldest.most radioactive.

Which type of rock contains the visible remains of ancient organisms and older rock?Group of answer choicesMetamorphic rockIgneous rockAll rocksSedimentary rock

List the names of the rock layers in the order in which they were formed. Oldest Youngest

Scientists can estimate the ages of rock if they contain certain __________. A. sediments B. carbons C. minerals D. index fossils

In a chain of hotspot volcanoes, where would you find the oldest volcano?Group of answer choicesthe biggest volcanofarthest from the volcano that erupted lastthe volcano that is covered with sedimentsfarthest from a MORnear the volcano that is erupting now