What theory holds that a nation’s power depends on expanding its trade?

Mercantilism

Explanation:

Mercantilism was the dominant economic system embraced by the Europeans between the 16th century to the 18th century. The system and theory believed that the wealth in the world was limited so it was in a nation's best interest to accumulate as much of this wealth as it could.

To do so therefore, the nation would have to expand its trade which meant to them that they had to export much more than they exported. They imposed tariffs on imports and colonized areas like the Americas with the goal being to sell their goods to these colonies.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

answer: this is because archeologists keep finding artefacts and ancient ruins dated more than 10000 to 15000 years, date around scientists said humans discovered language; which is at least mysterious as scientists always have said that is necessary to have a language to have architecture and some basic maths.

explanation: brainlest