silica
caldera
viscous
denser
subduction
divergence
hot spots
earthquakes
Explosions from composite volcanoes occur as a result of gas buildup within them. Shield volcanoes also may erupt explosively if water accumulates inside their vents.
Sedimentary rock can tell us about animals that used to live there, weather, droughts, acidity in water and air, and plant life that used to exist. please mark brainliest!!!