The Sahara covers most of North Africa
Answer:
b) electrons jump onto or off the neutral ball when a charged object comes close
Explanation:
What causes a pithball to move is when "electrons jump onto or off the neutral ball when a charged object comes close".
The pithball electroscope is actually used to test if a body is charged or not. When a charged body is brought near the pithball, the ball moves. The movement of that charged body reveal that there are electrons it is carrying.
The pithball can actually be charged. It is charged by touching a charged object to it. This leads to some of the charges on the surface of the charged object moving to the surface of the ball. The pith-ball electroscope was invented by John Canton, a British schoolmaster and physicist in 1754.
People who live in America can simply call themselves American now, as opposed to earlier when the area was divided into various countries.
<u>Explanation: </u>
This fact is the best out of the options that fits the description of the singular fact that best supports thee claim of modern life being less violent as compared to more and more of our evolutionary past.
This fact states that the people who were earlier divided into the countries and lived in a constant state of war, are now able to live together in a peaceful manner, thus stepping up from their evolutionary past and becoming less violent as they step into an era of modernization.
It extended citizenship to conquered people.
