Taxation without representation
Answer:
here are a few topics:
Explanation: first one:
you could talk about the earliest computers invented and how people had to operate them, you could also talk about how computers receive codes and the first ever code created.
Answer:
a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.
Explanation: