A place where something remains for a period of time within processes like the water cycle or the carbon cycle.

A place where something remains for a period of time within processes like the water cycle or the carbon cycle.

• A. Source
• B. Store
• C. Recharge
• D. Sediment

Answer: (B)

In these cycles, the idea being tested is that substances are held in a place called a store, where they remain for a period before moving on. A store is any reservoir where a quantity is held inside the system, so the substance can linger there for days, years, or even centuries. For example, water is stored in the ocean, groundwater, glaciers, and soil moisture, while carbon is stored in the atmosphere, plant biomass, soils, oceans, and rocks. The key is that the store is the location of the substance between fluxes like evaporation, precipitation, photosynthesis, respiration, or sedimentation. This is different from a source (where it originates) or a recharge (the process of adding to a store), and sediment refers to a material that can hold carbon but isn’t the generic term for a storage place.

In these cycles, the idea being tested is that substances are held in a place called a store, where they remain for a period before moving on. A store is any reservoir where a quantity is held inside the system, so the substance can linger there for days, years, or even centuries. For example, water is stored in the ocean, groundwater, glaciers, and soil moisture, while carbon is stored in the atmosphere, plant biomass, soils, oceans, and rocks. The key is that the store is the location of the substance between fluxes like evaporation, precipitation, photosynthesis, respiration, or sedimentation. This is different from a source (where it originates) or a recharge (the process of adding to a store), and sediment refers to a material that can hold carbon but isn’t the generic term for a storage place.