My job consists of reading and writing. is this sentence a participle or gerund?

Whigh sentence represents a sequence of events where the understanding comes prior to completion of the homework

Read this description of a detail from the movie i am legend. a scientist is the last man alive in a post-apocalyptic new york, where zombies have taken over and destroyed most of the population. about ten minutes into the film, the man thinks back to how the zombie creatures came to be, and how at one point he had a wife and child. which type of suspense technique did the screenwriter use? dramatic irony flashback foreshadowing special effects

What similarities are there between melchizedek and the englishman santiago? explain