Biology, 16.02.2021 19:20 sangamlama

(03.01 LC) Which of these is true about index fossils? Select one: a. Are very scarcely found
b. Used as guides in relative dating
c. Found in the youngest layer of the rock

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(03.01 LC) Which of these is true about index fossils? Select one: a. Are very scarcely found
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