Noncancerous tumors. Noncancerous tumors may develop in the ear canal, blocking it and causing hearing loss and a buildup of earwax. Exostoses occur in people who swim in cold water, such as scuba divers and surfers. Surfer's ear is a common term for bony exostosis in the ear canal. The most effective treatment for these noncancerous bony tumors is surgical removal. After treatment, hearing usually returns to normal.
No, a bar of gold (like the ones at Fort Knox) weights roughly 400 troy ounces, or about 27.5 pounds.
The karat weight system used in white gold is the same as that used in yellow gold (see the Gold section above). 18K yellow gold and 18K white gold contain the same proportion of gold; only the remaining 25% of the alloy is different.