A ice cube has a volume of 12cm3 and a mass of 11g what is the density of the ice

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?