Answer:
Quartzite is formed from the metamorphism of sand stone
I believe the correct answer from the choices listed above is the third option. It is oxygen that is a necessary reactant for cellular respiration to occur. Cellular respiration, in a sense, is breaking down sugar in the presence of oxygen. Hope this answers the question.
Because water helps plants grow
Poison Ivy. They are plants and can make their own food aka Glucose.