What signal word helps readers identify evidence of a caise and effect relationship in the passage ?

According to the riddle of the rosetta stone, what problem did both jean-francois champollion and sylvestre de sacy face in their attempts to decipher the writings on the rosetta stone?

Which two sentences in this excerpt from the time machine by h.g. wells suggest that the morlocks possesses a degree of intelligence comparable to that of humans

Ok which of peter's lines shows that he is using personal experience to understand the reading?