Multiple Choice
Humus is _______________.
A) an artificial fertilizer applied to monocultures
B) one of the primary causes of desertification if it is present in excess
C) caused by agricultural runoff into waterways or into the water table
D) a soil component composed of organic compounds that holds soil moisture and enhances soil fertility
E) a layer sometimes found in a soil horizon that is created by eluviation; it causes serious problems in agricultural fields
Correct Answer:

Verified
Correct Answer:
Verified
Q9: Discuss how specific land -use management strategies,such
Q40: _ is the buildup of salts in
Q41: Water diversion and pumping has allowed humans
Q42: No- till farming would be most beneficial
Q43: Alternating bands of different types of vegetation
Q44: Soil texture refers to the relative amounts
Q45: The layer below the O horizon in
Q47: Read the following scenario and answer the
Q49: A soil deficient in humus would _.<br>A)have
Q50: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6347/.jpg" alt=" Use the accompanying