A disadvantage of vegetative propagation is that
- A. plants are true to type
- B. fruits are small in size
- C. plants take a long time to mature
- D. diseases are easily transferred to offspring
Hibiscus and croton are examples of
- A. ground covers
- B. hedge plants
- C. lawn plants
- D. avenue trees
Ornamental plants are commonly used for the following purposes except
- A. for exterior decorations
- B. as sources of perfumes
- C. provision of shade
- D. as bedding materials for animals
Assuming that brown colour is dominant over black colour in cowpea, what percentage of the F1 will have brown colour , if a homozygous brown cowpea is crossed with a homozygous black cowpea?
- A. 100%
- B. 75%
- C. 50%
- D. 25%
One advantage of cross breeding is that the
- A. offspring resemble the recessive parent
- B. yield of the offspring may not be comparable to those of the parents
- C. offspring performs better than the average of the parents
- D. offspring cannot survive adverse environmental conditions
Which of the following plants is not a pasture grass?
- A. Pennisetum purpureum
- B. Axonopus compressus
- C. Stylosanthes gracilis
- D. Panicum maximum
Thinning is a farm operation in which
- A. empty spaces where seeds did not germinate are replanted
- B. the number of seedlings per stand is reduced to one or two
- C. fertilizers and manures are applied to crops
- D. effort is made to control pests
A groundnut variety produces a steady yield of 350kg per hectare. What will be the yield of the variety on a 10-hectare farm?
- A. 35kg
- B. 350kg
- C. 3,500kg
- D. 7,000kg
Which of the following crops is usually classified as a vegetable?
- A. Lycopersicon esculentum
- B. Ananas sativa
- C. Hevea brasiliensis
- D. Theobroma cacao
Which of the following statement describes an advantage of underground drainage? It
- A. allows for free movement of farm machinery
- B. checks the growth of weeds
- C. improves soil texture
- D. increases organic matter content of soil
The use of inorganic fertilizer is preferable to organic manure because inorganic fertilizer
- A. improves soil structure
- B. releases nutrients to the soil faster
- C. reduces leaching of soil nutrients
- D. improves soil water holding capacity
Which of the following practices does not replenish lost soil nutrients?
- A. crop rotation
- B. fallowing
- C. Liming
- D. Bush burning
A beneficial effect of bush burning on the soil is the
- A. reduction of soil microbial activities
- B. exposure of soil surface to erosion
- C. destruction of weed seeds
- D. improves soil water holding capacity
The purpose of the part labelled I in the experiment illustrated above is to
- A. allow proper aggregation of soil particles
- B. allow even evaporation of water
- C. prevent water from escaping
- D. distribute water around the soil
The aim of the experiment illustrated above is to
- A. determine soil texture
- B. ascertain water content of the soil
- C. examine the structure of the soil
- D. determine soil acidity
The structure of loam could be described as
- A. single-grained
- B. blocky
- C. crumby
- D. platy
The chemical composition of soil is mostly influenced by
- A. Climate
- B. Time
- C. Topography
- D. Parent material
Which of the following is an example of igneous rock?
- A. Basalt
- B. Dolomite
- C. Limestone
- D. Marble
Which of the following groups of raw materials are used in textile industries?
- A. Guinea corn, wheat and kenaf
- B. Cotton, jute and wool
- C. Coffee, cotton and cocoa
- D. Wool, palm kernel and maize
The practice of growing arable and forage crops alternately on a piece of land is called
- A. ley farming
- B. mixed farming
- C. alley farming
- D. pastoral farming
The survey equipment used for measuring angular distance is
- A. offset staff
- B. measuring tape
- C. ranging pole
- D. prismatic compass