Minerals play an important role in your body & functions. Water is regulated in the body cells by ... A. molybdenum and potassium
B. bauxite and sulphur
C. sulphur and quartz
D. calcite and dolomite

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.