What is one similarity between the mercantilist practices of spain, portugal, england,
france, or the dutch with the creation of maritime empires.

The similarity between the mercantilist practices of Spain, Portugal, England,  France, or the Dutch with the creation of Maritime Empires is increase in trade and innovation and developments.

Explanation:

Maritime empires were the empires which did not have much large area of lands with them and the boundaries are drawn between them with the huge bodies of water.

In the area of European continent, the major empires of maritime were Spain, Portugal, England and France and since the common practices of Mercantilism was to accumulate as much wealth as possible and to grow, so the practices common in all these places were growth in trade of goods and services and develop new innovations and inventions for growth.

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