GIVING BRAINLIEST, PLEASE HELP!! (if you answer correctly ill give you brainliest which will give you 25pts.)

How did the Berlin Wall come to represent the struggle of the Cold War? In other words, explain how East and West, both the city and the ideologies, were reflected in the construction of the Berlin Wall.

Respond in at least 3 complete sentences and support your answer with evidence.

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.