Which of the following is/are slow changes? A. Earthquakes
B. sea-floor spreading
C. Mountains
D. A and B are correct.
E. B and C are correct

Which measure of humidity, relative humidity or dew point, best describes the actual quantity of water vapor in a mass of air

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

Answer this asap. why did the americans go to china? a. trading b. exploration c. land d. live stock