Why did the Spanish think the Native peoples were primitive? Select all answer that applies. Some native tribes practiced human sacrifice

The natives were not Christian

The natives had metal tools

The natives did not have armor

The natives had lots of precious metals like gold and silver

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.