What is rock weathering and how does it affect agriculture?
Rock weathering is the process of rocks eroding and washing away from agricultural fields
Rock weathering is the process of breaking down rocks into smaller fragments
Rock weathering is the process of rocks decomposing and releasing nutrients into the soil
Rock weathering is the process of rocks absorbing water and expanding in size
Correct answer is B
Rock weathering refers to the natural process by which rocks are broken down into smaller fragments over time. This process is influenced by various factors such as temperature, moisture, wind, and the presence of organisms. There are different types of rock weathering, including physical weathering, chemical weathering, and biological weathering.
What is the importance of agriculture?
Agriculture has no significant impact on the economy or global trade
Agriculture is essential for food production and food security
Agriculture provides employment opportunities only in rural areas
Agriculture is primarily focused on the production of cash crops for export
Correct answer is B
Agriculture plays a crucial role in providing food for the growing global population and ensuring food security. It involves the cultivation of crops, rearing of livestock, and production of food products.
Which of the following is an example of a farm implement used for soil preparation in agriculture?
Seeder
Sprayer
Harvester
Plow
Correct answer is D
A plow is an example of a farm implement used for soil preparation in agriculture. A plow is a tool or implement that is pulled or attached to a tractor or draft animals and is used to break up, loosen, and turn over the soil. It helps in preparing the soil for planting crops by creating furrows or ridges and incorporating organic matter or fertilizer into the soil.
What is the primary purpose of farm surveying in agriculture?
Mapping land boundaries
Determining soil fertility
Assessing crop yield
Identifying pest infestations
Correct answer is A
The primary purpose of farm surveying in agriculture is to accurately map the land boundaries of a farm. Farm surveying involves the measurement and mapping of land to establish property lines, determine field sizes and shapes, and demarcate boundaries between different land parcels.
The mating of a white fulani bull and an N'dama cow could be termed?
Inbreeding
Line breeding
Outbreeding
Cross breeding
Correct answer is D
Animal breeding is producing improved breeds of domesticated animals by improving their genotypes through selective breeding.
In-breeding refers to the mating of more closely related individuals within the same breed for 4-6 generations.
Line breeding is the mating animals that are more distantly related which can be traced back to one common ancestor. Examples: Cousins Grandparents to grand offspring.
Out breeding is the breeding of unrelated animals is generally of two types:
Crossbreeding is the mating of two animals of different breeds. Superior traits that results in the crossbred progeny from crossbreeding are called hybrid vigor or heterosis.
Grading up is the breeding of animals of two different breeds where the animals of an indigenous breed/genetic group is mated by an improved pure breed for several generations towards attaining the superior traits of the improved breed.
White Fulani and N'dama cows are two different species of cow with desirable characteristics;N'Dama has short, slender limbs, with hooves strong enough to be used for traction work. The cows have modest udders with fine teats.
While in the White Fulani cow the general shallowness of the body and lack of width give the breed a leggy appearance. This characteristic of the breed has been described as an adaptation to long distance trekking in the pastoral management . The breed is of interest in that it is more tolerant to heat as compared to N'Dama and Gudali, more resistant to dermatophilosis than the Muturu and N'Dama breeds, resistant to intestinal helminth parasites, and has low mortality rate.