Which tasks does a volcanologist do to study volcanoes? Check all that apply. use autoclaves to imitate the interior of a volcano
Osimulate volcanic explosions with computer programs
O study lava samples
listen to the sounds of the interior of a volcano
o provide daily vog forecasts on TV news

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.