heat and lightMagma
Shielf volcanoes generally produce "quiet" eruptions. Explosive eruptions are rare.
It is a composite volcano, so the kind of eruptions it has is explosive.
Explosive volcanoes can produce pumice and tuff.
Mount St. Helens is generally regarded as an explosive volcano, but like most stratovolcanoes, it can produce both explosive and non-explosive eruptions.
Yes. Mount Rainier is a stratovolcano with the potential to produce explosive eruptions.
Explosive eruptions will produce pyroclastic rocks such as scoria, pumice, and tuff.
when two plates collide they form trenches.
Eruptions at shield volcanoes are almost always non-explosive.
the energy sun and stars produce is fusion.
collision
That would be a collission between two neutron stars. Since many stars are actually double stars, this can happen now and then.
Stars can be killed by a stellar objects during a collision.