Jamb Agricultural Science Questions
Question 251:
The most common soil mineral found in all crystalline rocks and a main constituent of granite and sandstone is
- A Biotite
- B Quartz
- C Mica
- D Granite
Question 252:
A soil with pH2 can be described as
- A Moderately acidic
- B Moderately alkaline
- C Highly acidic
- D Highly alkaline
Question 253:
Which of the following will be responsible for the poor yield of fertile soil in a high rainfall area?
- A Leaching of soil nutrients
- B Very low pH value of land
- C Lack of soil microbes
- D High alkalinity of soil
Question 254:
Crop rotation has the following effects on the soil except
- A Maintenance of soil fertility
- B Reducing concentration of soil pests
- C Improving soil structure
- D Predisposing soil to leaching
Question 255:
Which of the following is an example of igneous rock?
- A Gneiss
- B Limestone
- C Standstone
- D Granite