This Scottish inventor is responsible for making vast improvements to Thomas Newcomens steam engine the most important factor in the industrial revolution

James Watt's steam engines

A fundamental change in working principles was brought about by James Watt.

Brainliest  please

latin america is a region of racial and cultural diversity.  it is a group of countries and dependencies in the americas where romance languages are predominant. the term originated in 19th century france as amérique latine to consider french-speaking territories in the americas along with the larger group of countries where spanish and portuguese languages prevailed.

explanation:

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).