Decide whether the following statement applies to electric fields, magnetic fields, both kinds of fields, or neither field:
Field lines always form closed loops.
A. Neither electric nor magnetic fields
O B. Magnetic fields only
C. Both electric and magnetic fields
O D. Electric fields only

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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