Everything we have learned about stars comes from studying their A. distance

B. color

C. age

D. emission spectra

How did the europeans design the national borders of africa? why?

What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists? a.) earthquakes occur where the ocean floor reaches its highest temperatures. b.) many earthquakes take place 700 kilometers below the seafloor. c.) slabs of ocean floor return to the mantle in subduction zones. d.) ocean - trenches cause earthquakes.

Find the percent of change from 500 oz to 800 oz