1. In Flutter, what is the purpose of the MaterialApp widget?
2. What does "Widget" mean in Flutter?
3. What is the primary function of the "Navigator" widget in Flutter?
4. Which Flutter widget is used to display a modal dialog box?
5. What is a "StatelessWidget" in Flutter?
6. Which widget is used for making HTTP requests in Flutter?
7. In Flutter, how do you add padding around a widget?
8. Which widget is used to create a clickable button in Flutter?
9. What is the purpose of the "Expanded" widget in Flutter's "Column" or "Row" layouts?
10. How do you add a gradient background to a widget in Flutter?
11. Which package manager is commonly used in Flutter to manage dependencies?
12. Which Flutter command is used to create a new Flutter project?
13. How do you pass data between screens in Flutter?
14. How can you add custom fonts to a Flutter app?
15. What does "pubspec.yaml" file contain in a Flutter project?