Answer: The three main rock types are igneous, metamorphic and sedimentary.
The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.
Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
Explanation:
The density does not change because it is still the same liquid as before
That would be an endothermic reaction! :)
Types of Metals (alkali earth metals and transitional metals)
Answer: C
Explanation: The ocean floor is largely unexplored so no one knows what it is like.