REVISION AS CAMBRIDGE GEOGRAPHY: RIVERS - WATER BUDGET.

1. AS GEOGRAPHY
HYDROLOGY
4 QUESTIONS
REVISION
WATER
BUDGET

2. QUESTION 1
What is the major input of water in a basin?

3. ANSWER
Precipitation (rain, snow, hail, sleet).

4. QUESTION 2
What are the major outputs?

5. ANSWER
Evapotranspiration and runoff.

6. QUESTION 3
Under what conditions will the basin have a) a surplus, b) a deficit of
water?

7. ANSWER
a) Inputs exceed outputs
b) Outputs exceed inputs

8. QUESTION 4
How might the outputs of a basin exceed the inputs over the course of
a year?

9. ANSWER
Some water may be released from storage having been received as an
input the previous year.