What else is dust made of besides human skin?

In addition to human skin cells, dust is composed of a variety of other particles, including:

- Soil and minerals: Dust often contains small particles of soil, sand, and other minerals that can be picked up by wind and carried long distances.

- Pollen and spores: Dust can also contain pollen from plants, as well as spores from fungi and bacteria. These particles can be allergenic and cause respiratory problems in some people.

- Fibers: Dust can also contain fibers from clothing, furniture, and other textiles. These fibers can be natural materials such as cotton or wool, or synthetic materials such as polyester or nylon.

- Dust mites: Dust mites are tiny creatures that live in dust and feed on dead skin cells. They are not harmful to humans, but their droppings can cause allergies and asthma in some people.

- Other particles: Dust can also contain other particles such as soot, smoke, pet dander, and even tiny bits of plastic.

The composition of dust can vary depending on the location and environment. For example, dust in a city will likely contain more pollutants and particles from human activity, while dust in a rural area will likely contain more soil and minerals.