Because the earths magnetic poles move around from year to year, and even day to day.
Yes it is very hard
Yes it is very hard
The Lodestone Compass was a simple compass used in ancient times, consisting of a lodestone (a naturally magnetized stone) that aligns itself with the Earth's magnetic field. It helped sailors navigate by indicating the direction of the Earth's magnetic poles.
The poles of the earth are magnetic, and since a compass is ideally a magnet, it is always attracted to the North pole. It concerns me that a.) You did not learn this in 7th grade science and b.) that you didn't have the motivation to google this, as it's not like the answer is hard to find.
The compass impacted the world very hard from research the compass should be famous for it made the gps just from the compass easier to read is the compass it is about 99% out of a 100% percent correct. It is useful for traveling for anything that has a built in compass or a (gps).
hard rock
green poles in front, black poles in the middle, blue poles in back..........hard to do without a manual, but trial and error prevails
tectonic plates
Yes it is a good model for the earths dfferent zones
Tectonic plates
Diamond is the earths hardest material.
external hard drive