In Northern Europe, a distinctive kind of monumental stone architecture made its appearance late in the Neolithic period, known as:.

Megalith architecture

Explanation:

The history specialists of the 18t centuries believed that the occupying armies of the Roman empire, Goths, or Mongols had constructed them.

A megalith is a massive stone utilized, alone or amongst other rocks, to build a framework or shrine. In the Neolithic era, these buildings were mostly constructed. The Bronze Age started to be developed into them.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain