The map shows Europe. A map titled Political Map of Europe. Each country is shaded with a different color.

What information does this map provide?

It shows the boundaries of the countries in Europe.
It shows the major cities of each European country.
It shows where ancient civilizations developed in Europe.
It shows the geography of each European country

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal