I believe, those two materials were bamboo and carbonized thread
After thousands of experiments, Edison realized that filaments made from carbonized bamboo could alst for more than 1200 hours. (while others probably only last for several days)
This invention made Edison really rich after he mass produce it in late 1800s
The answer for 1 is assimilation
That's when you adopt the cultural tradition of the host country in order to be more like them.
The answer for 2 is pluralism
They keep their own beliefs and traditions and establish neighborhoods where they don't have to be assimilated.
I think it’s A since that’s the most powerful thing a president can do.
E. The minority populations will collectively outnumber the caucasian population.
Answer:
He tells them to be as quiet as possible and not to wear shoes so as not to make noise.
Explanation:
Mr. Frank and the family were Jews and were hiding in a commercial building, trying not to be captured by the Nazis and sent to concentration camps.
As stated above, they were hidden in a commercial building, where workers in a company operated during the day. In order not to be discovered, Mr. Frank suggested that everyone stay as quiet as possible during, moving as little as possible, and if it was necessary to move, do not wear shoes when walking, leaving your feet only in socks to avoid noise.
