A. terracing, irrigation and research
B. irrigation, crop rotation and over-cultivation
C. devegetation, research and mixed cropping
D. crop rotation, fire clearing and mixed cropping
Correct Answer:
Option A – terracing, irrigation and research
A. terracing, irrigation and research
B. irrigation, crop rotation and over-cultivation
C. devegetation, research and mixed cropping
D. crop rotation, fire clearing and mixed cropping
Correct Answer:
Option A – terracing, irrigation and research
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