Question 4 (1 point) Underline one sentence in paragraph 2 and one sentence in paragraph 3 that show how the standard mirror-making process ensures that
a mirror reflects images clearly.
a Glass mirror-making began around the 13th century. Craftsmen improved their techniques over the next several hundred years.
b Now modern mirror-making takes place in factories, with strict quality control and machines that do much of the work.
C The wall mirrors around your homes start out as a flat piece of glass - usually from 1/8 to 1/4-inch thick.
d "It has be the best quality of glass that we can produce," says Tom Mewbourne at glassmaker AFG Industries, Inc., in Tennessee.
e This means no bubbles, no bits of foreign material, no lines, and no distortions.