Afacet is a on a gem. polished surface cleavage plane small impurity crystal face

Option (1)

Explanation:

A Facet is usually defined as a flat surface that represents the polished surface on a gemstone that is being cut in a preferred geometric manner on the surface of the well transparent surfaces of a gem. It is comprised of three or four prominent sides. This process of cutting, polishing and making facets is commonly known as faceting.

The widest part within a faceted stone is referred to as girdle and it is located directly on a plane in such a way that it differentiates the crown.

Thus, the correct answer is option (1).

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.

which elements do geologists measure to determine the age of an organism’s remains? check all that apply.

carbon-14

nitrogen

carbon-12