Foremost of these are magma viscosity, gas loss and external properties such as conduit geometry. Ultimately, these parameters control the speed at which magmas ascend, decompress and outgas en route to the surface, and thus determine eruptive style and evolution.
The heat travels to the ice because the ice is colder than the temperature of the air in the room. This happens because the temperature is trying to regulate and when something is warmer than another substance or object then the heat will travel from the warmer object to the colder one. When this happens the ice melts because it can't be a solid for a long period of time.
A. True, stronger wind can move alot, including cars....
Answer:
Honestly, I think that all of them are equally important, they all have things about them that make them important and they all play a role in the survival of humanity and other organisms! So if u can put all of them, I think it would be the right answer!