Using the map of North American time zones for reference, if it is 8:00 P. M. standard time on Thursday in Baltimore (39 ∘ N, 77 ∘ W), what is the day and time in Sacramento (39 ∘ N, 121 ∘ W)?

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.