* Water: The primary element of a watershed, including rainfall, surface water, and groundwater.
* Soil: The foundation of the watershed, influencing water infiltration, storage, and plant growth.
* Sunlight: Provides energy for photosynthesis and influences temperature.
* Temperature: Affects chemical reactions, biological processes, and water evaporation.
* Air: Influences the exchange of gases, such as oxygen and carbon dioxide.
* Topography: The shape and elevation of the land, which affects water flow and runoff patterns.
* Geology: The underlying rock formations, which influence soil type, water quality, and mineral content.
* Climate: The long-term weather patterns, influencing rainfall, temperature, and other factors.
In contrast to abiotic elements, biotic elements are the living components of a watershed, such as plants, animals, and microorganisms.