Diluted hydrochloric acid is used to test for carbonate minerals such as calcite. which rock showed evidence of carbonate minerals? a. marble b. obsidian c. quartz d. gneiss

A. Marble  

Explanation:

Marble is mostly a crystalline form of calcium carbonate, CaCO3. Marble is a carbonate mineral, so it should give a positive test.  

B. and C. are wrong. Quartz is a crystalline form of SiO₂ and obsidian is a volcanic glass consisting mostly of SiO₂.

D. is wrong. Gneiss is a complex mixture  of quartz, aluminosilicate crystals, various metal silicates, and other noncarbonate minerals.

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.