What do spreading pine beetles have in common with melting sea ice?

Which objects allow humans to access groundwater? check all that apply.

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

Under which condition below would u expect a coarse-grained intrusive rock like diorite to form?