Tyres can blow out due to several reasons:

1. Over inflation: If tyres are filled with too much air, they can burst. The pressure causes the rubber to stretch beyond its limit, resulting in a blowout.

2. Under inflation: When the tyre doesn't have enough air, it can cause the tyre to flex more than it should. This excessive flexing leads to overheating of the tyre which compromises the integrity of the rubber and structural components, leading to a blowout.

3. Overloaded vehicle: If a vehicle is carrying weight exceeding its capacity, it will put an excess load on the tyres which can cause a blowout.

4. Damage or Wear: Tyres that have damage from hitting potholes or sharp objects, have tread separation or are just old and worn out can all lead to blowouts.

5. Extreme Heat: High ambient temperatures can cause the air inside a tire to expand, causing it to burst.

6. Negligence in maintenance: Not rotating the tires regularly or not aligning the tires properly can lead to uneven wear and tear. This can result in a blowout.

It's important to regularly check and maintain tyre health to prevent blowouts and ensure safety.

In "Merge Mansion," creating yarn involves utilizing the game's unique merging mechanics. First, ensure you have access to the appropriate area or event where cotton can be obtained, as cotton is the primary precursor to yarn. Once you have cotton, you will need to merge it to a certain level to transform it into yarn. Typically, the game follows a pattern where combining lower-level items creates higher-level items. Keep an eye on your storage space to manage your resources efficiently and aim to upgrade your storage whenever possible to facilitate the process of creating more advanced items like yarn. Patience is key, as higher-level merges can take time. Keep merging cotton and any intermediate products you get along the way until you reach the level where yarn is produced.

Titanium is a transition metal. It belongs to the fourth period line of the periodic table of elements. usually to the group column 4.