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Water Info
Groundwater
Water Use
Aquifers
Other
100
What is the only common substance that exists at the surface of the Earth as a solid, liquid, and a gas?
Water
100
Groundwater responds more quickly to precipitation than does surface water.
false
100
What is the major disadvantage to using desalination to produce fresh water?
It is expensive.
100
Confined aquifers can be recharged directly through surface water.
False.
100
How many liters are in 33 kiloliters?
33,000 liters.
200
Where is most of the water on Earth found?
Oceans
200
*What will happen to the water table if the ground water is pumped from a well (discharge) faster than the rate of recharge?
the water table will fall
200
What are the 2 largest uses of freshwater in the United States?
power plants and irrigation
200
What is the name of an aquifer with a free connection upward to the Earth's surface called?
unconfined aquifer
200
What is the term defined as the "removal of salt from seawater to create fresh water?"
desalination
300
How would you describe the total volume of water on Earth and the reservoirs it is found in?
Almost constant but continuously in motion from one reservoir to another.
300
What is the direction of groundwater flow?
from where the water table is high to where it is low.
300
Why are traditional methods of irrigation inefficient?
water evaporates or soaks into the soil between the crops.
300
the quiz on page 27, question #11, what is the most commom arrangement of these zones starting with the surface?
aerated zone, saturated zone, impermeable zoneUsing
300
What happens as the permeability of a material increases?
the ability of a substance to hold water decreases
400
*What percentage of water on Earth is available for drinking?
1%
400
What is the effect of pumping water from a well?
Changes the height of the water table, especially around the well.
400
What are 3 components of xeriscaping?
using native plants, using low water plants, using large mulch areas instead of grass.
400
What is the name of the zone where the pores within the soil are mostly filled with water?
saturated.
400
*What is the term described as "a direct measure of the water holding capacity of a material?"
porosity
500
What is meant by a "closed system?"
Materials are cycled and recycled.
500
*Look at the quiz on page #27, question #8. What would a person expect to find at location B?
spring
500
What is a water budget?
An accounting of the water supply and demand.
500
Using the quiz on page 27, question #10, which of the 4 choices has the greatest porosity?
pebble soil
500
What is the difference between porosity and permeability?
Porosity has to do with the size of the pores, permeability is about how easily water can travel through a substance.