which choice names two ways nonmetallic minerals can be used , A wiring and gems , B gems and as conductor ,C industrial processes and gems ,D conductors and for industrial purposes

C industrial processes and gems

Explanation:

Non - metallic minerals can be used for industrial processes and as gems. Some non - metallic minerals have great value, good cut and attract a good market price. Example is ruby and tourmaline.

fire could start, buildings collapsing, and ash falling from the sky.

explanation:

this is because the buildings or plants could catch on fire and the buildings would most likely collapse. lastly ash would fall because all the burning would cause ash to fall from the sky.

hope this .

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.