Define “4-point scale”

How does the bare soil surface type affect the amount of runoff

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

What border separates sonora and chihuahua national border state border physical boundary natural boundary