1) A single bolt of lightning can heat the surrounding air to temperatures five times hotter than the surface of the sun.

2) Tea, originating from China, is one of the most consumed beverages globally. It is made from the leaves of the Camellia sinensis plant and comes in various types, including green, black, oolong, and white tea. Each type undergoes different processing methods, resulting in distinct flavors and aromas. Tea culture has a rich history and is celebrated in rituals, ceremonies, and social gatherings in different cultures worldwide.

3) The word "piano" contains three vowels: I, A, and O.

4) The Industrial Revolution led to significant urbanization, as people migrated from rural areas to cities in search of employment in factories.