What is the purpose of the water budget?
a. it scientists determine if the sea level is rising due to global warming
b. it tells scientists what the earth does with its water and allows them to see how much water is available for
people to use
c. it scientist and government agencies determine how much money we need to spend on obtaining water
resources
d. it allows families to budget the amount of water they use in their homes for drinking, bathing, cleaning, etc