The horizon of a soil profile which encourages the greatest level of microbial activity is
A - horizon
B - horizon
C - horizon
D - horizon
Correct answer is A
The A-horizon is a weathered layer that contains an accumulation of humus (decomposed, dark-coloured, carbon-rich matter) and microbial biomass that is mixed with small-grained minerals to form aggregate structures.
What are the important properties of soil in agriculture?
pH, organic matter content, and water-holding
Drainage, cation exchange capacity, and soil depth.
All of the above
Texture, structure, and fertility
Correct answer is C
Soil properties play a critical role in agricultural practices and the successful cultivation of crops.
Which of the following is a hand tool commonly used in agriculture for cutting grass or crops?
Harrow
Plow
Scythe
Seeder
Correct answer is C
A scythe is a hand tool commonly used in agriculture for cutting grass or crops. It consists of a long, curved blade attached to a handle, and it is used by swinging the blade in a rhythmic motion to cut vegetation close to the ground.
Which breed of sheep is commonly found in Nigeria and known for its meat production?
West African Dwarf
Barbados Blackbelly
Uda
Dorper
Correct answer is A
The breed of sheep commonly found in Nigeria and known for its meat production is the West African Dwarf. This breed is small but has a high resistance to trypanosomiasis and other diseases, making it ideal for meat production in the region.
The N'dama breed of cattle is primarily raised for
Fiber production
Meat production
Milk production
Draft power
Correct answer is B
The N'dama breed of cattle is primarily raised for meat production. N'dama is a breed of cattle indigenous to Africa, and it is well known for its resistance to trypanosomiasis or sleeping sickness. While they can be used for milk production, their primary use is for meat production.