Ice cores tell us that the Earth was dustier during cold periods. What does that tell you about how the Earth System responds to cooling?

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

Find the slope of the line (6,4) and (3,2)

The inner planets mercury, venus, earth, and mars were formed by