1. Hydrologic Cycle

Water Balance — Quiz

Test your understanding of water balance with 5 practice questions.

Practice Questions

Question 1

Which of the following components of the water balance equation is most significantly influenced by the antecedent moisture conditions of the soil?

Question 2

A basin has an annual precipitation of $1200 \text{ mm}$. The annual runoff is $400 \text{ mm}$, and the change in storage is $-50 \text{ mm}$ (a decrease). Assuming the general water balance equation $P = R + ET + \Delta S$, what is the annual evapotranspiration (ET) for this basin?

Question 3

In a complex urbanized catchment, which of the following processes would be considered an 'unaccounted for' output in a simplified water balance model, potentially leading to an overestimation of storage if not considered?

Question 4

The concept of 'interception loss' is most directly associated with which component of the water balance equation in a forested basin?

Question 5

Consider a basin where the primary input is precipitation (P) and the outputs are runoff (R), evapotranspiration (ET), and groundwater recharge (G). If the basin experiences a long-term trend of decreasing groundwater levels, which of the following scenarios is most plausible, assuming other factors remain constant?