The Precambrian time period is segmented into very few parts because: a.
the fossil record is scarce
c.
cyanobacteria were the only life form
b.
life did not exist
d.
volcanic activity ruined the fossil record

the narrator is a first person, participant one, who describes in the simple past tense important and difficult events in his earlier life. he also provides temporal markers as the month (january) and the time (12: 30 pm). finally the account of his experience is very detailed, to the extent that a participant narrator would talk the same way about his experiences. a good example of such detail is the mention of the “bovril ration” which historically was a native american food adopted by european explorers in arctic and antarctic regions due to its high level of calories.

you should ask "yourself is it good enough? "

a. energy is conserved on earth, but matter is not.