The appearance of an element is a:

here is a answer

Explanation:

All elements in the repository have a global default appearance, which is defined in the Options Window. Individual elements can set a global appearance that overrides the default setting for all elements and applies to the specified element wherever it appears in diagrams. An element's appearance can also be changed at the level of an individual diagram by using the color and font pickers. Images and other shapes can also be applied to make the element more appealing.

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all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101

few emissions (dabs bc im right)