Answer:
Temperature
Explanation:
The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid.
The mass of an atom is contained in the nucleus.
The water cycle has a process called evaporation.
A. A stream flows into a lake
A stream of water will fill the lake entering it
