In what country did peasants still have to provide free labor, such as repairing roads and bridges?

Two books are used to model tectonic plates

What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity? they created the scientific method to outline how science should be conducted. they were able to find the orbit of a comet and predict the year of its return. they discovered the three newest planets--uranus, neptune, and pluto. they explained why objects appear to have color.

Agovernment is a government system where all citizens that choose to vote have a say in their government. question 4 options: communist democratic autocratic theocracy