In the 1700s, an effect of the enlightenment was
1.a rise in support for representative government.
2.the creation of new protestant churches across europe.
3.an increase in new scientific discoveries and methods.
4.the return to classical ideas such as humanism and realism.

The correct answer is: "a rise in support for representative government."

The Enlightment philosophers, such as Locke, Monstequieu or Rosseau,  developed ideas that challenged, and ended up derrocating, the power structures of the Old Regime.

They promoted democratic principles, such as the definitions of bills of citizens' rights, social contract (citizens electing political representatives to create goverment through suffrage, in opposition to the prevailing absolute monarchies), and the division of the powers of the state in order to avoid excessive power accumulation in certain sectors, and risks of authoritarism.

All these ideas challenged the status quo, and gave rise to many revolutions in Europe, being the French Revolution the most remarkable one, and also has an effect overseas, as it influenced and triggered the American Revolution too.

the progressive era is a period of widespread social activism and political reform across the united states that spanned from the 1890s to the 1920s.[1] the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.

the movement primarily targeted political machines and their bosses. by taking down these corrupt representatives in office, a further means of direct democracy would be established. they also sought regulation of monopolies (trust busting) and corporations through antitrust laws, which were seen as a way to promote equal competition for the advantage of legitimate competitors.

many progressives supported prohibition of alcoholic beverages, ostensibly to destroy the political power of local bosses based in saloons, but others out of a religious motivation. at the same time, women's suffrage was promoted to bring a "purer" female vote into the arena.a third theme was building an efficiency movement in every sector that could identify old ways that needed modernizing, and bring to bear scientific, medical and engineering solutions; a key part of the efficiency movement was scientific management, or "taylorism".

hope this you! have a great day

during the hitler era and it caused them to declare war on germany