A soil that has become mineralized will have
A) more earthworms, more humus, and more sand.
B) fewer earthworms and fungi, less humus, and more sand, silt, or clay.
C) more detritus, more fungi, and less aeration.
D) more detritus, more bacteria, and less water-holding capacity.
Question 2
Which of the following is not typical of U.S. suburbs?
A) Residential density is as high as the inner city.
B) There is high physical separation between homes, work, and shopping.
C) There is congested traffic due to inadequate road networks.
D) There are unclear city borders.
Soil Degradation and Loss
Soil layers known as horizons "طبقات التربة المعروفة آفاق"
Soil Components
Global Soil Regions
Soil Erosion "تآكل التربة"
Deciduous forest soil profile