399 - BPL Hot Air - Changing the shape of the envelope of a free balloon, e.g. by a gust, results in:

×

New: Boost Your Preparation!

On our site, you'll now find our new PRO Simulation Panel! Here are some of the exclusive benefits you get by unlocking it:

• ✅ All official questions, none excluded
• 🧠 Explanations and predictions with Artificial Intelligence
• ♾️ No time or exam limits
• 🚫 Zero ads

💻 Discover the PRO Panel

---

You can still continue with the free version, which gives you access to 75% of the questions with a limit of 3 simulations every 2 hours.