Only advertising appears in Microsoft Edge because it is the default setting for the browser's new tab page. Microsoft Edge has a feature called "News and Interests" that displays personalized news, weather, and other information, but this feature can be turned off or customized to only show advertising. Additionally, Microsoft may have partnerships with advertising companies to display their content on the new tab page. **

The presence of "e" and "edge" after O2 is due to the fact that O2 is a chemical formula representing oxygen in its diatomic form. The "e" typically indicates that the oxygen molecule is in its elemental state, while "edge" may refer to the edge-sharing oxygen atoms in certain crystal structures. These terms are commonly used in chemistry to specify different forms or arrangements of oxygen atoms. **

Red spots can appear on the head after cutting hair due to a condition called folliculitis, which is the inflammation of hair follicles. This can be caused by irritation from the hair cutting process, bacteria entering the follicles, or improper hygiene practices. The red spots may also be a result of razor burn or ingrown hairs. It is important to keep the scalp clean and moisturized to prevent these red spots from occurring. **

Stains can appear on the edge of a metal bed frame due to a variety of reasons. One common cause is rusting, which occurs when the metal is exposed to moisture or humidity over time. Another reason could be from spills or accidents that leave behind residue or discoloration. Additionally, if the metal bed frame is not properly sealed or coated, it may be more susceptible to staining from oils, lotions, or other substances that come into contact with it. Regular cleaning and maintenance can help prevent and remove stains on the edge of a metal bed frame. **

Some autistics may appear shy due to difficulties with social interactions and communication. They may struggle with initiating conversations or making eye contact, which can be perceived as shyness. However, it is important to recognize that not all autistics are shy, as individuals with autism spectrum disorder can have a wide range of personalities and behaviors. It is essential to approach each person as an individual and not make assumptions based on stereotypes. **

Keldeo does not appear because it is a mythical Pokémon that is not typically found in the wild. It is often associated with special events or distributions in the Pokémon games, making it a rare and elusive Pokémon to obtain. Additionally, Keldeo's appearance may be tied to specific storylines or events within the Pokémon games, further limiting its availability in the wild. **

Piercings do not necessarily appear asocial. The perception of piercings as asocial may vary depending on cultural and individual perspectives. Some people may associate certain piercings with rebellion or nonconformity, while others may view them as a form of self-expression or personal style. Ultimately, the perception of piercings as asocial is subjective and can vary widely. **

Muscles themselves do not have the capacity for emotions or personality traits such as arrogance. The appearance of muscles on a person may be perceived as intimidating or boastful by some individuals, but this is a subjective interpretation. It is important to remember that muscles are simply a physical feature of the body and do not inherently convey any specific attitude or demeanor. **