1. What was Nobel's invention about?
→ Nobel's invention about make dynamite
2. How was he when he knew his invention being used for bad purpose?
→ However, he saw it being used in war to destroy things, he was extremely unhappy.
3. Did he give all the money to his relatives on his death?
→ No, he didn't.
4. What is his money used for?
→ On his death, he left all his money to be spent upon a prize every year.