A constitutional monarchy, means there is still a “monarch” but similar to American style government they have to follow a set of rules based on a written or un-written constitution. Absolute monarchy is when a ruler does not have to follow a set of rules listed out by a written or in-written constitution.
The AG industry was able to provide way bigger amounts of food. With higher amounts and productivity gave farmers a easier time to keep up with the growing population around the world. more people means higher demand for food in larger quantities.
The size and enthusiasm of the American forces bolstered the French and British.
Explanation: You have more people to govern, which means you need rules and procedures to have a strong government to be able to control a populist and a balanced one so you don't lose support of your citizens. A doom government is one with no support.
Here is the answer. I've already drawn lines to the answer.