plz solve this

- Identify the stocks in the system, the flows, and some of the converters. Build, in STELLA, a rough model diagram map (two stocks) of the core part of the dynamic system described (no numbers or equations are required). Pay attention to units. A model will not make sense unless the units are consistent. Flows always have units that are the stock units per time unit. This diagram must be developed enough to contain at least one feedback loop that includes more than three components. This feedback will probably connect two stock concepts. (30 Marks) - Identify the stocks in the system, the flows, and some of the converters. Build, in STELLA, a rough model diagram map (two stocks) of the core part of the dynamic system described (no numbers or equations are required). Pay attention to units. A model will not make sense unless the units are consistent. Flows always have units that are the stock units per time unit. This diagram must be developed enough to contain at least one feedback loop that includes more than three components. This feedback will probably connect two stock concepts. (30 Marks)