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

They do it because it helps them analyze limestone properly. They add it to the acid and see how minerals behave which helps them realize which minerals can be found in which rocks. Usually it helps with things such as calcite.

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].

The answer is false.if you have any questions ask