Answer:
Explanation:
The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.
The answer i believe is a gel
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Sugar and oxygen
The answer is C. 1, 5, 4, 6, 3, 2.
