Question

1. Why does bicycle tyre burst during
summer?
2. Why do the hot air balloons fly high?​

Answer 1

Answer:

1. Air expands in area causing the fully air tight tyre to expand more which eventually bursts the tyre. In normal condition air molecules are close to each other but when air is heated due to hot climate, air molecules moves far from each other causing air to expand.

2.  Hot air balloons fly when the air inside the hot air balloon is less dense than the air surrounding it. Hot air is less dense than cool air; the heated air causes the balloon to rise simply because it is lighter than an equal volume of cold air. ... A hot air balloon uses a burner to heat up the air inside the balloon

Explanation:

Answer 2

Answer:

due to boyles law

Explanation:

Volume proportional to temp