Log Masuk
WAEC - Biology (1996 - No. 17)
Which of the following is the effect of continuous tillage on an ecological system?
Addition of more. humus to the soil
Decrease in productivity
Increase in yield
Improved fertility
Prevention of erosion
Komen (0)
Log Masuk Untuk Mengulas
Iklan
Benarkan javascript memuatkan halaman ini dengan betul
