Fracking is used to extract what?

a) coal
b)natural gas
c)all of the above
d)petroleum

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

In this assignment, you will analyze an example of speciation by researching the finches of the galapagos islands. then you will answer questions to construct explanations and draw conclusions based on the information you gather. someone plz !

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic