Th correct answer would be D! Hope this helps
I think format? or formula?
If it’s referring to sea floor spreading then the answer is D, I hate analogies but I think it’s talking about the mantle convection that slowly breaks away at the lithosphere
Chords that contain tones a half-step or whole-step apart are called Tone Clusters. It is a chord made up of tones only a half step or whole step apart. It can be produced on a piano by striking a group of adjacent keys with the fist or forearm.
