Which of the following countries was not part of the heavily industrialized black triangle of eastern europe?

Explanation:

The Black Triangle is a region shared by Germany, Poland, and the Czech Republic, described by very elevated amounts of contamination.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers