It is D, you can not replace minerals. This makes them valuable.
Place the magnet at one end of the piece of metal. The magnet must make as much contact with the metal as possible. Place light pressure on the magnet and rub the metal in one direction only. Magnetization will take some time to accomplish so continue rubbing until the iron or steel attracts other pieces of metal.
From the word compound, the compound machine is already a combination of two or more types of simple machine. Thus, the answer is letter C. Because of its complexity, it is able to perform several other functions than a simple one.
Answer:
true
Explanation:
free fall is said to be the downward movement of an object under the force of gravity only
Its called the Phase Transition. Im assuming your asking what is it called when matter transitions between solid liquid and gas.