If a dry soil high in certain types of ________ is moistened, it is likely to swell up with enough force to crack pavements and building foundations.
A) silt
B) iron
C) clay
D) humus
E) any of the above
Question 2Because of their greater surface area per unit of soil mass, silt loams soils generally have a greater capacity than loamy sand soils to ________.
A) adsorb gases
B) support bacterial growth
C) adsorb water
D) release nutrients by mineral weathering
E) all of the above
Question 3Which color would be typical of a well drained, low-organic matter, sandy surface soil?
A) 10YR5/8 B) 10YR8/4 C) 7.5YR2/2 D) 2.5YR6/1 E) 7.5YR6/2
Question 4Dull gray colors are characterized by ________.
A) low color values
B) mixed hues
C) low chromas
D) gray hues
E) high color values
Question 5Oxisols are more highly weathered than are the soils of any other order.
Indicate whether the statement is true or false
Question 6Andisols are found mostly near recently active volcanoes.
Indicate whether the statement is true or false
Question 7Soils in the Oxisols order are deeply weathered and have deep subsurface horizons of silicon oxide.
Indicate whether the statement is true or false
Question 8Broadcast application usually requires less fertilizer to achieve a given level of plant response than does banding.
Indicate whether the statement is true or false
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