The Constitution of the United States established America's national government and fundamental laws, and guaranteed certain basic rights for its citizens. It was signed on September 17, 1787, by delegates to the Constitutional Convention in Philadelphia.
Answer:
<em>Physical barrier </em>
Explanation:
Physical barrier <em>is the ecological and natural situation that acts as a communication obstacle when transmitting message from recipient to receiver. </em>
The components of physical obstacles are organizational atmosphere or interior work space design issues, technical issues and noise.
“The M.A.I.N. causes of World War I were Militarism, secret Alliances, Imperialism and Nationalism. The driving force was nationalism. ... The igniting incident of the “Great War” was the assassination of the Archduke Franz Ferdinand, heir to the Austro-Hungarian Empire, in Bosnia by a Serbian nationalist.