How would a river that drains a watershed be affected if a portion of forest
uphill from the river was converted into a city with mostly impermeable
surfaces?
A. The river would decrease in size due to more runoff.
B. The river would increase in size due to more runoff.
C. The river would increase in size due to more rain seeping into the groundwater.
D. The river would decrease in size due to more rain seeping into the groundwater.