A beneficial effect of bush burning is that it
Replenishes oxygen in the atmosphere
Increases the organic matter of soil
Encourages the regeneration of grasses
Increases the population of soil microorganisms
Correct answer is C
When a controlled fire burns through a grassland, it can remove accumulated dead plant material and woody debris, known as thatch. Thatch can hinder the growth of new grass shoots and prevent sunlight and rainwater from reaching the soil surface. By removing the thatch through controlled burning, the fire creates a favorable environment for grass regeneration.
125 kg
50 kg
250 kg
1,250 kg
Correct answer is A
1 hectare = 10,000 square meters
Area of the farmland = 100 m x 500 m = 50,000 square meters
Now, we can convert the area to hectares:
Area in hectares = 50,000 square meters / 10,000 square meters/hectare = 5 hectares
Next, we can calculate the quantity of cowpea seeds required using the given seed rate:
Seed rate = 25 kg/hectare
Quantity of cowpea seeds required = Seed rate x Area
Quantity of cowpea seeds required = 25 kg/hectare x 5 hectares
Quantity of cowpea seeds required = 125 kg
Therefore, the quantity of cowpea seeds required to cultivate the farmland is 125 kg. The correct answer is "125 kg."
Maceration is carried out in the processing of
Paddy rice
Oil palm
Cotton
Cocoa
Correct answer is B
Maceration is a process used in the processing of oil palm. It involves the softening or breaking down of the oil palm fruits by soaking them in water or another liquid. This process helps to separate the oil from the fruit and makes it easier to extract the oil.
Which of the following pairs of livestock diseases could be contracted through inhalation?
Coccidiosis and rinderpest
Newcastle disease and aspergillosis
Anthrax and tuberculosis
Gumboro and brucellosis
Correct answer is B
Newcastle disease and aspergillosis are livestock diseases that can be contracted through inhalation of infectious agents.
Which of the following statements about underground drainage is true
Ditches are constructed to remove excess water
Ditches are dug from a source of water to the farmland
Furrows are constructed to direct water out of the farmland
Water seeps into tiles to reach an outlet where it is discharged
Correct answer is D
In this drainage system, perforated pipes or tiles are placed underground at a certain depth, usually below the root zone of the crops. These pipes or tiles have small holes or perforations that allow water to seep into them from the surrounding soil. As the water table rises due to excess moisture in the soil, the water seeps into these pipes through the perforations.