Biotic components (living things or originated from living things)People living in the housePets such as dogs or catsPotted plants or indoor flowersInsects like worms, flies, or other microorganisms that may be presentMold or fungi growing in damp areasAbiotic components (non-living things)Air inside and around the houseWater used in the houseLight from the sun or artificial sources (light bulbs)Furniture such as tables, chairs, televisions, carpets, and lightsMaterials like cement, wood, glass, and other household itemsTemperature—warmth or coldness felt inside the houseDust or dirt, which are non-living but part of the house environment