What technology is used to extract Natural gas?

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

What is the next step in the process after a substrate enters the active site of an enzyme

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone