A) Frequency, Intensity, Type, and Time.<span />
Answer:
A magnetic compass points to the earth's magnetic poles, which are not the same as earth's geographic poles. ... When it comes to magnets, opposites attract. This fact means that the north end of a magnet in a compass is attracted to the south magnetic pole, which lies close to the geographic north pole
Cardiovascular so you can pump oxygenated blood through the heart
