Based on these two excerpts, which two of the following sounds can cause immediate hearing
damage?

Subway trains roaring by

Constant highway traffic

Children playing outside

Gas-powered lawn mowers

Jet taking off

subway trains roaring by, and gas-powered lawnmowers.

Explanation:

studies show that it only takes 30 seconds of exposure to sounds of the subway coming into the station to give you immediate hearing damage. Gas-powered lawn mowers reach up to 90- 106 decibels and this can immediately affect your hearing.

the purpose of the heading in the passage is to identify who is telling the story.

this excerpt is part of the book sugar changed the world (2010) written by marc aronson and marina budhos. as the book has been written by two people, the heading "marc" indicates that this specific excerpt is being narrated by aronson. in the fragment, marc describes his grandfather's story after hearing it from his cousin. however, there are other excerpts where budhos is the one that tells the story of her family.

aronson and budhos, who are husband and wife in real life, decided to write sugar changed the world when they found out how sugar, which had an important role in slavery and economy, changed their ancestors' lives.