18) _______ are traces of animals and plants that have been preserved in rock.*1 pointfossilsartifactstoolsdomesticate

Identify the biologic sedimentary rock consisted mainly of plant remains.Group of answer choicesbiotiteconglomeratecoalgranite

18. Which of the following come from types of organisms that lived during only a relatively short period of time and are used to determine the relative age of rocks? imprints index fossils trace fossils extrusions

What name is given to the remains of organisms that lived many years ago, found in rocks?

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

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