which is the best reason that a geologist mig...

which is the best reason that a geologist might carry a small dropper bottle filled with hydrochloric acid when doing fieldwork?\no to wash rock samples to make them easier to study\no to wear away large areas of rock to see what is underneath\no to test for the presence of carbonate minerals in a rock\no to use as an emergency eyewash in case rock dust gets in the eyes\ndone

Answer

# Answer: to test for the presence of carbonate minerals in a rock # Brief Explanations: Carbonate minerals react with hydrochloric acid to produce carbon - dioxide gas, which can be easily observed as fizzing. Geologists use this reaction to identify carbonate - bearing rocks in the field. Hydrochloric acid is not used for washing samples, wearing away large rock areas, or as an eyewash.