I need 8 people over the age of 18 to answer these 5 questions for me?

Please answer these 5 questions for me for a science project: 1. What was one reason the united states joined world war 2? 2. What precedent did Plessy V Ferguson set? 3. What was the red scare? 4. What did the 19th amendment do? 5. What was the Harlem Renaissance? Please only answer if you are at least 18, and please do not look up the answer, if you do not know the answer to a question, just type no response or something similar. Thank you.