Why do authors use subheading?

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To make an etching the artist first coats the entire printing plate with an acid-resistant substance called a made from beeswax, asphalt, and other material. the artist then draws on the coated plate with an etching needle exposing the metal. next the plate is dipped in the plate is removed, the waxy coating removed, and the plate is cleaned, inked and printed.

Amuseum displays an ancient aztec calendar. this object holds cultural value because

The degree to witch the surface of an object seems to have a particular feel is referred to as an object