The land use or farming system is perceived to be non-self sustaining because of:
Correct answer: B. All of the above
- A. Depletion of soil nutrients (especially nitrogen and phosphorous)
- B. All of the above
- C. Inadequate fuel and food supplies
- D. Soil degradation due to absence of soil cover at certain times
Explanation
A farming system becomes non-self-sustaining when nutrients are depleted, soil is exposed to degradation and basic fuel or food needs are not met. Each listed problem can indicate loss of system sustainability.
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