What is one of the main problems with being able to predict when a volcanic eruption will occur?

What is the main purpose of the gi bill

Which characteristics of temperature and salinity have the greatest influence on the movement of deep-ocean currentsa. warm and low salinityb. cold and high salinityc. cold and low salinityd. warm and high salinity

Which statements describe earth? check all that apply. it is an outer planet. it is a terrestrial planet. it was formed from gas and dust. it has a thick atmosphere of hydrogen and helium. it was formed in a debris disk from colliding planetesimals.