In the past 25 years,population pressures have forced more land to come under shifting cultivation,but per hectare yields from the system have declined.
Correct Answer:
Verified
Q20: Which of the following has NOT been
Q21: More than 75% of the potentially arable
Q22: Increasing per hectare yields of crops will
Q23: Africa has lagged far behind other developing
Q24: Significant amounts of nitrates are adsorbed in
Q26: Conservation tillage systems can decrease soil erosion
Q27: Alfisols are of greater importance in semi-arid
Q28: Experts predict that the world's population will
Q29: Global warming will likely be curtailed if
Q30: Alley cropping systems help control soil erosion,but
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents