Yes, it is politically correct to refer to the Czech Republic as Czechia. In fact, Czechia is the official short name for the country that was adopted by the Czech government in 2016. Using Czechia helps to distinguish the country from Slovakia and is widely accepted in both formal and informal contexts. **

It is not necessarily "not allowed" to say Czechia, but rather it is not commonly used in English-speaking countries. The term Czechia is the official short name for the Czech Republic, but many people still refer to the country as the Czech Republic to avoid confusion. Additionally, some people may not be familiar with the term Czechia, so using the more widely recognized Czech Republic helps ensure clear communication. **

Yes, you could consider yourself to have foreign roots if your great-grandmother comes from Czechia. While it may not be as immediate as having a parent or grandparent from another country, having a great-grandparent from Czechia still connects you to that culture and heritage. You may have a unique opportunity to explore and learn more about your Czech roots through your great-grandmother's background. **

Czechia and the Czech Republic are two names for the same country in Central Europe. In 2016, the Czech government officially endorsed the name "Czechia" as a shorter, more modern alternative to the traditional name "Czech Republic." While both names refer to the same country, "Czechia" is often used in informal contexts and for branding purposes, while "Czech Republic" remains the official name for international relations and treaties. **

Full-face helmets provide more protection for the face and jaw in the event of a crash, making them better for more aggressive and high-speed cycling such as downhill mountain biking or BMX racing. However, for general cycling, half-shell helmets are often preferred due to their lighter weight, better ventilation, and less restrictive feel. The choice between the two depends on the type of cycling and the level of risk involved. **

Yes, it is necessary to have bicycle helmets. Wearing a helmet while riding a bicycle can significantly reduce the risk of head injury in the event of a crash or fall. Helmets provide crucial protection for the brain and skull, and can potentially save lives. It is important for both children and adults to wear helmets while cycling to ensure their safety on the road. **

Yes, you may install LED lights on your bicycle. LED lights are a popular choice for bike lights because they are energy-efficient, long-lasting, and provide bright illumination. Adding LED lights to your bicycle can improve your visibility to others on the road, especially in low-light conditions, and help enhance your safety while riding. Just be sure to check your local regulations to ensure that the installation and use of LED lights on bicycles comply with any specific laws or requirements in your area. **

Yes, there are bicycle accessories that make noise. For example, some bicycles have bells or horns that can be used to alert others of your presence. Additionally, some riders may attach accessories such as spoke clackers or playing cards to their wheel spokes to create a clicking or rattling sound as they ride. These accessories can be useful for safety and visibility, especially in crowded or noisy environments. **