What coefficient for O2 demonstrates the Law of Conservation of mass?CH4 + __O2 -> CO2 + 2H2Oa. 1b. 2c. 3d. 4

Two things that biomedical has invented or innovated

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

In 2002, the rare earth elements mine in mountain pass, california was closed because