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.

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

im pretty sure its b