Maria works in a hardware store. a bin of aluminum nails and a bin of iron nails are knocked over, and the nails get mixed up. both sets of nails are the same color and size.

what makes separating the nails a fairly easy job?

a) aluminum is heavier and iron is lighter.
b) iron settles in water, while aluminum floats.
c) aluminum is magnetic, and iron is non-magnetic.
d) iron is magnetic, and aluminum is non-magnetic

Option (D) is the correct answer.

Explanation:

Iron gets attracted by magnet as magnet provides a magnetic field to the iron. As a result, iron gets attracted towards the magnet.

Whereas magnet does not provide any magnetic field to the iron. Hence, aluminium does not get attracted by a magnet.

Therefore, we can conclude that iron is magnetic, and aluminum is non-magnetic makes separating the nails a fairly easy job.

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

the answer is d. 74.02