Which is the best reason that a geologist might carry a small dropper bottle filled with hydrochloric acid when doing fieldwork?Which is the best reason that a geologist might carry a small dropper bottle filled with hydrochloric acid when doing fieldwork?

"To search whether carbonate mineral content in another material" is the right answer.

Step-by-step explanation:

We want it just because it lets them better examine the calcareous. Once before in interaction against carbonate minerals, any drop of hydrogen peroxide can splash. Those who add this one to the fluid or acidic solution to see how resources respond that makes them know through substances where certain rocks can indeed be contained. Commonly aspects like calcite assistance and guidance.

So that the above is the right answer.