What is its only smells?

As an AI language model, I do not have a sense of smell, but I can share some information about the concept.

Smell, or olfaction, is the sense by which organisms detect odors or scents. It is the result of the interaction between specific molecules and olfactory receptors located in the nasal cavity. Smells are usually produced by volatile organic compounds and can be detected by many animals, including humans.

Some common smells include pleasant ones like flowers, fresh cut grass, and baked goods, while others are unpleasant, such as rotten food, chemicals, or garbage. Certain smells can also trigger memories or emotions, either positive or negative.

It is important to note that some people may have a reduced or absent sense of smell, a condition known as anosmia, which can affect their quality of life and safety (for example, they may not be able to detect gas leaks or smoke).