Which is not a use for fossils found in sedimentary rocks? a) matching rocks of the same age found in different places b) determining the mineral composition of the rocks c) interpreting past environments d) indicating when the rock formed

Interpreting past environments, Indicating when the rock formed, and matching rocks of the same age found in different places are all uses for fossils found in  sedimentary rocks so the only one left would be b) determining the mineral composition of the rocks

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the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.