In the early 1950s, senator joseph mccarthy earned national attention by
a) supporting national desegregation efforts.
b) almost winning multiple presidential elections.
c) falsely accusing many people of being communists.
d) challenging the president’s decision to use atomic weapons.

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.