Answer:
ancient greeks and romans
Explanation:
are know to have used toothpaste,and people in china and india first used toothpaste around 500BC.
Answer:
The field lines bend away from the second south pole.
Explanation:
Magnetic line of force are forces acting on a bar magnet in the magnetic field. It specifies the direction in which a magnet tends to move when placed in the field.
For bar magnets with south poles, the magnetic line of force tends to move away from the south poles of both magnets thereby creating a force of opposition between them since like poles of a magnet repels each other.
