What was one reason for the United States entering World War I? to destroy the Ottoman Empire

to gain territory in South America

to form alliances with Great Britain

to make the world safe for democracy

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.