Unit 8 Exam Flashcards
Potable
Drinkable
Desert
Are with continua, severe water shortages
Aquifer
Water bearing rock formation
Saturated
All spaces in soil filled with water
Water table
The level below which the ground is saturated with water
Evaporation
Liquid to gas
Erosion
Wearing away
Computer models
Used to identify pesticide movement
Pesticides
Allowed even though water may be available
Nitrates and pesticides
Monitored by the USDA
Nevada and Utah
No risk of groundwater contamination according to the USDA
Database
Used by the USDA to make management plans
Gravitational water
Water that trickles downward as a result of gravity
Capillary water
Usable by plants
Hygroscopic water
Soil water held so tightly by sediment grains that it is unavailable for plant use.
Water
Plants and animals 90%
Constructed wetlands
Man made marshes
Fresh water
Water that contains insignificant amount of salts, as in rivers and lakes
Salt water
Water that contains dissolved salts and other minerals
Brackish water
Mixture of fresh and salt water
Plant residue
Plant material that remains when a plant dies or is harvested
Hydroponics
A technique of growing plants (without soil) in water containing dissolved nutrient
Irrigation
A way of supplying water to an area of land
Mulch
A material (such as decaying leaves,bark, or compost) spread around or over a plant to add in soil erosion
Artesian
A Well in which water rises because of pressure within the aquifer
