What is the effect when the author of Exploring the Titanic describes the night the Titanic sank?

The reader understands the author’s reasons for wanting to find the Titanic.
The reader realizes that the author has regrets about finding the Titanic.
A mood of disappointment builds and lasts throughout the rest of the passage.
A respectful mood forms alongside the existing general mood of excitement.

Experiment to investigate effect of medication on levels of stress in males and females. dependant variable?

The defendant, angered because a rival gang member had twice beaten him up after school, obtained a heavy lead pipe and waited in a deserted alleyway which he knew the rival took as a route home every day after school. when his enemy came walking down the alley, the defendant leapt out behind him and smashed the pipe into the victim's head, knocking him to the ground. the defendant then rolled the victim over and pounded his face with 15 to 20 heavy blows with the lead pipe, killing him. the jurisdiction defines first degree murder as murder committed with premeditation and deliberation. all other murders are defined as second degree murders. why will the defendant be convicted of first degree murder (as opposed to second degree murder)?

It has been reported that the dna of the elephant shark has barely changed over the last 420 million years. which statement explains why the elephant shark has not changed over time?