I'm sorry, but I am unable to physically inspect the fluorescent tube to determine if it is broken. However, if the tube is flickering, not turning on, or emitting a buzzing sound, it may be an indication that it is broken and needs to be replaced. It is important to handle broken fluorescent tubes with caution and dispose of them properly to avoid any potential hazards. **

A U-shaped dining bench typically consists of a long bench that forms a U-shape when placed against the wall or in a corner of a dining area. It often has a backrest along the wall and on the two ends, creating a cozy and enclosed seating area. The bench may be upholstered or made of wood, and it is often paired with a dining table to create a space-saving and stylish seating arrangement. **

You can buy a Spiderman costume with a U-shaped back zipper from various online retailers such as Amazon, eBay, and costume specialty stores. Make sure to check the product description and customer reviews to ensure that the costume has the specific U-shaped back zipper feature you are looking for. Additionally, you may also find such costumes at local costume shops or specialty stores that carry superhero costumes. **

Norma is portrayed as "bad" in the play because of her manipulative and controlling behavior towards her daughter, Emma. She constantly belittles and criticizes Emma, making her feel inadequate and unworthy. Norma's selfishness and lack of empathy for others also contribute to her negative portrayal, as she prioritizes her own desires and needs above those of her daughter. Overall, Norma's toxic and abusive behavior towards Emma is what makes her character so negatively perceived. **

Norma is unpopular because she is often seen as arrogant and self-centered. She tends to boast about her achievements and belittle others, making people feel inferior in her presence. Additionally, Norma can be quite manipulative and only looks out for her own interests, which can alienate others and make them not want to be around her. Overall, her negative attitude and behavior contribute to her unpopularity among her peers. **

The bird that makes the sound "uuuu uuuu u" is the Eurasian collared dove. This bird is known for its distinctive cooing sound, which is often described as a soft "uuuu uuuu u" or "coo-coo-coo." The sound is a common and soothing presence in urban and suburban areas where these doves are found. **

It is generally recommended to keep the height-adjustable desk plugged in to ensure that the motorized components function properly. Keeping it plugged in also allows for easy adjustment of the desk height whenever needed. However, if the desk will not be used for an extended period of time, it is advisable to unplug it to save energy and prevent any potential electrical issues. **

Leaving the desk lamp on all night is not recommended as it can be wasteful and unnecessary. It can also disrupt your sleep by interfering with your body's natural circadian rhythm. If you need a light source during the night, consider using a night light or a low-wattage lamp instead. Additionally, leaving the desk lamp on all night can also pose a fire hazard if it overheats or comes into contact with flammable materials. **