Hw

Well the three pathfinders that i picked were ancient Greece, Human Anatomy,Planets. In the pathfinder for greece i found out about its life and cultures and it had links to other interesting stuff about the life they had, in human anatomy it had links to how the body works and what are the part that we all have inside and in the planets i found stuff on the stars and cosmo and its planet around us. What i found interesting wasa that for one subject you can find so many links of information all in one the other cool thing is that you dont have to go looking around for other things and the question that i have is how can you be sure that all this stuff and links are true?