Sketch of earthquake pattern from a bird's-eye view ?

Atsunami usually is the result of a. a nearby underwater earthquake. b. the winter monsoons. c. seismic activity in the eastern pacific ocean. d. hurricane-force winds.

What is an example of a line segment

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted