Which of these is the most common characteristic of a political map? identification of cities, states, and countries
presence of topography and boundaries
labels for continents and oceans
key for natural resources

The correct alternative is "Identification of cities, states and countries".

A political map must have states and countries marked on it, also its capitals. But on the other hand, there's no need for the presence of topography and boundaries, because it would include the political boundaries, not the natural ones.

Also, labels for continents and oceans is not a characteristic of a political map, nor the key for natural resources.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.

we need the chart or check box