Question

What are some of the risks that people take when their homes or bridges are located in areas with loose soil, or when their homes or bridges are not earthquake-resistant

Answer 1

They may brake easily and wont hold as good as if they were built in tight soil

Answer 2

I'm not an earthquake genius but I'm probably going to guess the house or bridge will blow away or get really badly damaged. (Most likely damaged pretty badly). It could also lose some debris (like the roof of a house) and cause damage to another house or object. Hope I helped and good luck with your assignment!
 
I like your handwriting btw. ;)