Kepler devised three laws to explain ? the in the universe. according to the first law, a planet revolves around the sun in a path similar to ? with the sun fixed at one of its focus points. a)gravitational force of earth b)motion of the planets c) sizes of the planets 1)an ellipse 2)a hyperbola 3)a sphere

What triggered the surge of conservative governments in central europe at the end of world war i? a. the disintegration of european families in the wake of urbanization. b. a worldwide revolutionary upsurge. c. the revival of the austrian-hungarian and ottoman empires. d. the british suppression of the indian nationalist movement. e. the killing of the tsar during the russian revolution?

Why are primary sources important when studying historical events

Who founded the social contract theory of the government