Answer:
The first lady is passionate about the personal project and she lead the topic and become the face for that project. They also become the part of the various political parties and solving all the issues passionately. For example Nancy reagan is the first lady who raised her voice and fight against the drug abuse.
And in the twentieth century, many ladies promoting different types of products and brands and also aware on various ladies about the nutritious diet and good physical health conditions.
Answer:
https://www.energy.gov/articles/history-light-bulb
Explanation:
The Berlin wall was used to divide east berlin and west berlin
