Why does the size of naphthalene balls decrease when left open?
When naphthalene balls are left open, due to sublimation they change to vapours and their size decreases.
Why does the author say in paragraph 2, 'the massive distribution centers Amazon has opened across the country, often not too far from malls the company helped shutter'?
We see camphor and naphthalene balls growing smaller as time passes. Why does this happen?