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Problem 2. (15 pts) Textbook Ch2, Exercise 4, question (a). 4. The table below gives average precipitation, streamflow, and temperature for four large rivers. a. For each watershed, estimate average potential cvapotranspiration (PET) via equation (2B4.2) and determine whether each watershed is water-limited or energy-limited (section 2.2.8.3). Problem 2. (15 pts) Textbook Ch2, Exercise 4, question (a). 4. The table below gives average precipitation, streamflow, and temperature for four large rivers. a. For each watershed, estimate average potential cvapotranspiration (PET) via equation (2B4.2) and determine whether each watershed is water-limited or energy-limited (section 2.2.8.3)