Which strategy do geologist use to locate the center of an earthquake

What are chlorofluorocarbons made of

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

What is the correct trna sequence that would match the following mrna sequence.gcgaua