Which of the following cannot be used to rub the metal parts of farm tools before storage?
- A. grease
- B. plam oil
- C. water
- D. petroleum jelly
- E. spent engine oil
Which of the following implements will be used for the next farm operation after clearing a new farmland?
- A. harrow
- B. ridger
- C. cultivator
- D. planter
- E. plough
The type of energy obtained from the sun for agricultural uses is known as
- A. potential energy
- B. mechanical energy
- C. nuclear energy
- D. solar energy
- E. kinetic energy
The relationship between the microorganisms and plant in the nitrogen cycle is best described as
- A. parasitism
- B. commensalism
- C. competition
- D. symbiosis
- E. saprophytism
The type of rocks formed from the molten magma is known as
- A. sedimentary
- B. igneous
- C. metamorphic
- D. schist
- E. sandstone
The earthworm is important to the farmer because it
- A. improves soil structure
- B. improves soil texture
- C. destroys soil pathogens
- D. adds nutrients to the soil
- E. prevents soil erosion
A farmer cultivating leafy vegetables will require fertilizers with a relatively high content of
- A. calcium
- B. magnesium
- C. potasssium
- D. nitrogen
- E. phosphorus
Which of the following types of soil contains particles of diameter between 0.02 mm and 2.o mm?
- A. sand
- B. silt
- C. gravel
- D. clay
- E. stone
Which of the following is not associated with surface irrigation?
- A. natural flooding
- B. check flooding
- C. sprinkler irrigation
- D. mole drains
- E. tiles
which of the following farm practices can prevent excessive evaporation from soil surfaces?
- A. liming
- B. mulching
- C. weeding
- D. harrowing
- E. ploughing
When leaves of crop plants show brownish coloration from the tips of the mid-ribs backward, they are showing deficiency symptom of
- A. magnesium
- B. zinc
- C. nitrogen
- D. copper
- E. phosphorus
In which layer of the soil profile does most biological activity occur?
- A. parent material
- B. D-horizon
- C. C-horizon
- D. B-horizon
- E. A-horizon
Granite is
- A. a sedimentary rock
- B. a wealtered rock
- C. mentamorphic rock
- D. an igneous rock
- E. a plutonic rock
Which of the following factors influence agricultural production is biotic factor?
- A. parasite
- B. soil PH
- C. topography
- D. soil texture
- E. temperature
The alternate heating and cooling of rocks result in
- A. sublimation
- B. volatilization
- C. fragmentation
- D. solidification
- E. sedimentation
soil texture is described as the
- A. distribution of the different sizes of soil particles
- B. arrangement of soil particles in a soil sample
- C. rate at which water moves through the soil
- D. degree to which air spaces aerate the soil
- E. distribution of soil particles in a sample
The problems associated with land tenure through inheritance include the following except
- A. small land holdings for family members
- B. hatred among family members arising from land sharing
- C. right of individuals to free use and control of inherited land
- D. individuals being restricted to their plots
- E. difficulty to sell part of the inherited land
A piece of land is said to be on lease to a farmer when the land is
- A. inherited from the father
- B. given to him as a gift
- C. given as compensation
- D. purchased on credit
- E. given for a specified period on rental basis