Which component of magma includes mobile ions of silicon?

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.

Which domain endings indicate websites that are most likely to be reliable sources? check all that apply. sites ending in .net

Part a: in paragraph 2, you can infer from the phrase "..thegreat triumph in mathematics" that the lieutenant is: