A fertile soil, suitable growing common crops, is like to have a pH value of
A. Three
B. Four
C. Six to seven
D. Nine to ten
Answer: Option D
A. Three
B. Four
C. Six to seven
D. Nine to ten
Answer: Option D
Which of the following is not a cause of soil erosion?
A. Drainage
B. Deforestation
C. Weathering
D. Grazing
Which of the following is not a tropical type of soil?
A. Red soil
B. Desert soil
C. Black soil
D. Brown soil
Extensive subsistence agriculture is ________
A. Farming on the slopes of Western Ghats
B. Farming in the thickly populated areas
C. Farming in the thinly populated areas
D. Farming in the forests of equatorial region
Most of the crops require slightly acidic condition hence the answer is C. 6-7