1- evaporation can occur when
a.
vapor pressure of surface water decreases
b.
two warm air masses collide
c.
two cold air masses collide
d. vapor pressure of surface water increases
2-which of the followings is not true about precipitation?
a. most precipitation is results of evaporation over oceans.
b. extreme variability in precipitation can be found around the world.
c. cooling of air can occur when cooler air masses rise above warmer air masses at front.
d. cooling of air can occur when clouds rise over mountains.
3-in groundwater replenishment system in orange county, ca, treated domestic sewer is injected into underlying aquifers using injection wells.
true
false
4-a watershed is:
a. the area drained by a sewer system
b. the area contributing water to the runoff of a stream system
c. the area covered by the groundwater table
d. the area between two mountains
5-water budget for the high plains aquifer before and after the development (pumping) is summarized in the figure below. which of the followings is not true about the high plains aquifer before or after development?
a. groundwater storage (volume of water stored in the aquifer) was balanced before development.
b. natural discharge decreased after development.
c. groundwater storage decreased after development.
d. groundwater extraction after development was less than safe yield.