This is an Expo project created with create-expo-app.

1. Install dependencies

   npm install

2. Start the app

    npx expo start

In the output, you'll find options to open the app in a

• development build
• Android emulator
• iOS simulator
• Expo Go, a limited sandbox for trying out app development with Expo

You can start developing by editing the files inside the app directory. This project uses file-based routing.

When you're ready, run:

npm run reset-project

This command will move the starter code to the app-example directory and create a blank app directory where you can start developing.

To learn more about developing your project with Expo, look at the following resources:

• Expo documentation: Learn fundamentals, or go into advanced topics with our guides.
• Learn Expo tutorial: Follow a step-by-step tutorial where you'll create a project that runs on Android, iOS, and the web.

Join our community of developers creating universal apps.

• Expo on GitHub: View our open source platform and contribute.
• Discord community: Chat with Expo users and ask questions.

L'histoire de la Terre commence voici plus de 4,5 milliards d'années. Au centre de la Terre, un noyau métallique de fer et de nickel peut atteindre 5 500 degrés. Il est entouré d'un manteau de roches, plus ou moins fondues. En surface, l'écorce (ou croute) terrestre n'a que 5 à 70 km d'épaisseur, selon les endroits.