Andre heated several solid crystals of a substance called iodine, and the iodine changed directly to a gas. the iodine gas then cooled and changed into droplets. which two processes did the iodine undergo? a. condensation, then vaporization b. sublimation, then condensation c. deposition, then sublimation d. vaporization, then deposition

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods