It would help if there are some options, but some common sources:
Televisions
Microwave Ovens
Cell Phones
Satellites
Wired Computers
CD players
etc.
Answer:
they move in an orbit of a fixed size and also energy
For number one, the answer is the first dash mark
And for number two, the answer is the 4th dash.
Something that is not magnetic
Answer is a) the force caused by the wend nag encountering wind and air.