Rock deposits will always be older than soil deposits.Group of answer choicesTrueFalse

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

Which rock layer is the oldest?

of original isotope found in the rock. The absolute age of a specimen (fossil) or rock is

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

Which statement explaining the age of the rock layers best supports the answer to Part A?​   ARock layers that contain fossils are always the oldest rock layers and can be used to determine the ages of rock layers above them.BGeologic events like earthquakes can erase rock layers from the geologic timescale and make it difficult to know the ages of different rock layers.COlder rock layers will always be directly below younger rock layers unless they have been disturbed by geologic activity.DRock layers that are the thickest are the oldest because they represent a longer span of time in which the rock layer was formed