Which of the following statements are true? Check all that apply.

a. Earth's geographic south pole is also a magnetic south pole.
b. The north poles of two bar magnets will attract each other.
c. Scientists have evidence that single isolated magnetic poles, called magnetic monopoles, exist.
d. Earth's geographic north pole is actually a magnetic south pole.
e. The south poles of two bar magnets will repel each other.
f. The north pole of a bar magnet will attract the south pole of another bar magnet.

D,E,F

Explanation:

d. Earth's geographic north pole is actually a magnetic south pole.

e. The south poles of two bar magnets will repel each other.

f. The north pole of a bar magnet will attract the south pole of another bar magnet.

In a magnetic field like poles repel and unlike poles attract each other. The like poles which is south to south or north to north repel each other and the unlike poles which is north to south or south to north attract each other which makes E and F correct.

A is correct because compasses points to the North Pole when places in the Southern Hemisphere.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.