Answer:
10- Oxymoron
The words "safety" and "hazard" are right by each other and those are complete opposites so that is an oxymoron.
11- alliteration
The use of the b's at the beginning of a lot of the words is alliteration because it is the repetition of a similar sound at the beginning of the word. The only other one that it could be is consonance because consonance also repeats a sound, but only consonants and it is usually at the end of the word. Even though b is a consonant, I don't think it is consonance because the repetition appears at the beginning of the word.
12- Anaphora
This is anaphora because the word "singing" is being repeated in most of the clauses in order to place emphasis on it.
Teenager and young adult are you answers
Answer: The sea was like a rippling blanket of brochure-blue. Squabbling seagulls flew overhead, harassing the beachgoers in their endless hunger. Gannets were dive-bombing the stretched surface of the sea far out from shore. The horizon was edged with a silver tint and a cormorant was flying into that place where sun and water meet. His wings were a blur of motion and he soon faded from sight. The opera of the sea washed over me and the wave-music was welcome.
Add some more commas and periods. This might fix some run-on sentences in there.
Healthcare insurance is an insurance covering some or all of the risks of a person when surrounding any expenses they may need medically.