Igneous rocks with an andesitic composition

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 which phase(s) do the molecules take the shape of the container?

What’s the theoretical yield of solid lead