'Cam fishes like an expert' - is an example of what language technique?

Which of the following is an example of sibilance?

'The birds chirp and tweet every morning' - is an example of which language feature?

'The school itself took a sigh of relief as all the students left the building' - is an example of which language technique?

'Five fearless fugitives fight furiously together' - is an example of which language technique?

'An icy chill was suddenly present in the wind and the air seemed to freeze when Cam walked into the room' - is an example of which language technique?

The telly ruled the house, sucking in the souls of each member of the home.  

'The sky was spectacular; it was full of stunning stars and looked sensational above the mountains' - what is the main language feature used here?

'Her body trembled like a rabbit in headlights and her heart hammered against her chest as she looked around the room.  Her mouth twisted with fury and she ground her teeth against one another.  She crushed her fingers into her fist until she felt her nails pierce the skin.  Never in her life had she felt such savage and uncontrollable rage' contains examples of which language techniques?

'Not only is the cat pretty ugly but it is also passive aggressive.  Even when I'm dead tired, she will still whisper loudly in my ear that she's hungry or in need of attention.  My only choice is to bow down to her demands; she's terribly good at picking me up and dropping me whenever she likes.  I often let out a silent scream until the times we're alone together and she launches her friendly takeover of the couch' - contains several examples of oxymorons, but how many can you spot?