You may answer each question as many times as necessary to obtain the correct answer. You must answer ALL questions.Your progress will be tracked automatically.
Combining Texas natives with___________________, is a key to a beautiful, interesting landscape which conserves water.
well-adapted non-native plants
cacti
exotic plants
all of the above
Of the tremendous amounts of water applied to lawns and gardens the greatest waste comes from ____________________.
applying too much too often
runoff
evaporation
leaks
_________________ irrigation also allows safer use of "salty water" in the landscape and garden.
Sprinkler
Overhead
Regular
None of the above
Generally speaking, ________________ require(s) more frequent watering and maintenance than most other landscape plants.
trees
turfgrass
shrubs
annual color
EarthKind Water Management incorporates ____ basic principles that conserve water and help protect the environment.
1
3
5
7
A good mulch ____________________________.
reduces weed populations
prevents soil compaction
keeps soil temperatures more moderate
does all of the above
_________________ increases the soil's ability to absorb and store water in a form available to the plant.
Sand
Top soil
Clay
Organic matter
At the first sign of wilting, you have _________________ hours to water turfgrass before serious injury occurs.
10 to 12
12 to 24
24 to 48
48 to 72
A well-designed landscape can decrease maintenance by as much as 50 percent through ________________.
reduced mowing
once-a-year mulching
elimination of unadapted plants
all of the above
Creating a water-efficient landscape begins with a ________________________.
collection of drought tolerant plants
water conserving soil amendments
landscape design
none of the above
In many urban areas of Texas between __________ percent of the water supply is used for landscape irrigation.
10 - 20
30 - 40
40 - 60
60 - 75
The key to watering lawns is to apply the water ________________________ to create a deep, well-rooted lawn.
frequently, yet thoroughly
infrequently, yet thoroughly
frequently, yet efficiently
like none of the above
A properly adjusted sprinkler head sprays __________________ of water.