Dust is made up of tiny particles that can come from various sources, including soil, pollen, and human activities. It is often found in homes, where it can accumulate on surfaces and in the air. Dust can contain a mix of materials, such as dead skin cells, hair, and fibers from clothing and furniture. Dust plays a role in the environment by contributing to soil formation and providing nutrients for plants. It can also affect air quality and human health, as inhaling dust particles may lead to respiratory issues. Regular cleaning can help reduce dust buildup in living spaces.