Which of the following is a soil micro-nutrient?
Magnesium
Potassium
Calcium
Iron
Phosphorus
Correct answer is D
No explanation has been provided for this answer.
The amount of air and water in the soil is mostly affected by the
Location of the soil
Amount of annual rainfall
Chemical compostion of the soil
Living organisms in the soil
Structure of the soil
Correct answer is E
No explanation has been provided for this answer.
Which of the following does not influence rock weathering?
Water
Carbonation
Roots
Ammonification
Temperature
Correct answer is D
No explanation has been provided for this answer.
Topography
Soil moisture
Soil aeration
Degree of soil acidity
Temperature
Correct answer is A
No explanation has been provided for this answer.
The following are characteristics of quartz except
Being granular
Having shiny surface
Being glass-like
Having cleavage
Being semi-translucent
Correct answer is D
No explanation has been provided for this answer.