Which statement best describes the magnetism shown by a paper clip when it is attracted to a bar magnet close by? A. It occurs when it's near another magnet.
It's always occurring.
C. It occurs when there is an electric current
D. It occurs when touching another magnet.

Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.

What properties of a moving object are used in determining the object's energy of motion

What was the first instrument to ever record an earthquake?