What are the advantages of division of labor and the disadvantages of division of labor

Advantage:

It makes work faster and easier

Disadvantage:

The work to its very best

Explanation:

More people reduces the time spent on one work which makes easier to finish but the work might not be done to its very best because different people are doing the job

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.