1. What's the difference between an alert and a modal?
   3. Alerts are good at inheriting the look and feel of the mobile environment whereas modals are regular React Native views that you have total stylistic control over.
2. Which React Native component can be used to create a modal view that overlays other components on the screen?
   2. The Modal component.
3. What's the best way to display passive notifications on Android systems?
   2. You can use the ToastAndroid React Native API. There's no good alternative on iOS that doesn't involve rolling your own code.
4. The React Native Alert API is only available on iOS.
   2. False