1 . a solenoid with a core of magnetic material electromagnet
2 . a coil of current-carrying wire which produces a magnetic field electromagnetic induction
3 . a device for detecting small amounts of current galvanometer
4 . the creation of an electric current in a circuit exposed to a changing magnetic field solenoid

0.863333

86%

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i think they are all correct

explanation:

they seem good

ok

explanation:

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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