Q1 The predominant soil type in the northestern part of Nigeria is
Q2 One of the following is a passive soil formation factors
Q3 The major cause for land degradation in Nigeria is
Q4 A kind of wind deposited soil is
Q5 The system of farming which involves tilting at right angles to the slope of the land is called
Q6 The system of soil conservation that involves the planting in row or operating farm equipment across the slope is called
Q7 The constituents of a fertile soil depends on the following except
Q8 Reduction of nitrite to molecular nitrogen by microbial activity is known as
Q9 One of the following is not in the the processes of nitrogen cycle
Q10 Regulatory mechanism in photosynthesis and carbohydrate translocation is the function of
Q11 Constituent of chlorophyll and enzyme activator is the main function of
Q12 Soil acidity increase the concentration of the following element except
Q13 One of the following has the highest concentration in the soil
Q14 Water volume determine the availability of one of the following
Q15 Soil capacity to produce a certain yield of crops is known as
Q16 A vertical exposure of a soil consisting of the horizon is called
Q17 The process of humification occur in one of the following soil layer
Q18 Ability of a soil to supply essential elements for plant growth is called
Q19 Plant absorb the following from the soil except
Q20 One of the following soil classification approach is dated back to the work of the Russian School of Pedology
Q21 The following are morphological approach categories except
Q22 Genetic approach to soil classification recognizes the following order except
Q23 Soil classification system with the aim of infering genesis profilr characteristics is called
Q24 The oldest system of soil classification developed in the USA is
Q25 A process that involves changes in chemical speciation that result to the change in solubility of iron is called
Q26 One of the following is not the cause of soil erosion
Q27 The following measures can be adopted in controlling soil erosion except
Q28 Soil pH between 1 to 3 is said to be
Q29 The process of soil formation in the cool humid regions of coniferous forest vegetation is called
Q30 These are otherwise known as laterite soil except
Q31 The breakdown of organic into its constituent like oxygen is called
Q32 The process by which organic matter is decomposed and humus is synthesized is known as
Q33 The following are soil cations except
Q34 Total potential of soil for absorbing cations and exchange nutrient for plant growth is called
Q35 Soil reaction may be of the following except
Q36 Soil porosity is influenced by the following except
Q37 The development of soil structure is influenced mainly by one of the following
Q38 Soil structure are of the following on the basis of ped except
Q39 Soil particle with diameter between 1.00 to 0.50 is
Q40 The following are chemical properties of the soil except
Q41 The free circulation of air within the soil is called
Q42 The degree of coldness and hotness of the soil is referred to as
Q43 The aggregation of the units of the soil mass into various shapes and sizes is called
Q44 The following are forms of soil water except
Q45 The degree of coarseness and fineness of the soil material is known as
Q46 The following are physical characteristics of soil except
Q47 Which of the following is the determinant of the volume of soil air in the soil
Q48 The proportion of soil air in percentage is
Q49 One of the greatest contributions of the higher plants is to
Q50 One of the following is not a component of soil
Q51 The following are physical components of the soil except
Q52 The rock fragments made up of sand silt and clay fractions of the soil is called
Q53 The Russian school of soil science was founded by one of the following
Q54 Which of the following is regarded as father of modern soil science
Q55 The first group of scientist to study soil were
Q56 The study of soils in their natural setting field is known as
Q57 Soil is not a concept of study in one of the following areas
Q58 The top layer of soil containing partially decomposed organic matter and some inorganic mineral particles is known as
Q59 A soil consists of mineral particles which are cemented together by
Q60 The thin surface of the uppermost layer of the earth is
Q61 One of the following is not type of azonal soil
Q62 The world types of soil are the following except
Q63 One of the following complex process of soil
formation is predominant in low-rainfall area especially in the
continental interior
Q64 The process by which organic matter is decomposed
and new organic complexes are synthesized to form humus or the organic
component of the soil is called.
Q65 The complex processes of soil formation are the following except
Q66 The following are biological processes of soil formation except
Q67 Horizon differentiation of soil formation include the following except
Q68 One of the following is not among the passive soil forming factor
Q69 The predominant factor of soil formation is
Q70 Soil formation is influenced by the following factors except
Q71 Absence of phosphorus in the soil results to the following symptoms on grown plant except
Q72 The following micro nutrients becomes more available in the soil with increasing acidity except
Q73 The following are soil micro nutrients except
Q74 Vertical or lateral translocation of mineral particles colloids and soluble salts within the soil is called
Q75 The greatest proportion of organic matter in the soil are
Q76 When soil nutrient cations are released into the
soil solution and their places on the clay particle are taken up by
hydrogen ion is called
Q77 Soil chemical properties are made up of the following except
Q78 Those properties which are required by plants in large amounts is referred to as
Q79 The following are forms of nitrogen except
Q80 The most available macro element in the soil is
Q81 The impact of traditionally adopted shifting cultivation is
Q82 Degradation of soil can be reduced by
Q83 The major cause for land degradation in Nigeria is
Q84 A kind of wind deposited soil is
Q85 The syst em of farming which involves tilting at right angles to the slope of the land is called
Q86 The system of soil conservation that involves the planting in row or operating farm equipment across the slope is called
Q87 The process of protecting the soil against the erosion or deterioration is called
Q88 Which of the following is not an economic benefit of soil to mankind?
Q89 Which type of soil is coarse gritty loose with large pore spaces well aerated and has high capillarity
Q90 The best type of soil for planting grains
Q91 One of the following is not the agent of soil erosion
Q92 The following are forms of soil erosion except
Q93 The physical factors of soil erosion are made up of the following except
Q94 The detachment and removal of the topsoil either
partially or completely by water, wind and ice especially by water and
wind is known as
Q95 Tropical soils with distinctive horizon of iron and aluminnum oxides is called
Q96 The system of grouping soils for the production of particular crop is called
Q97 Classification of soils that based on the relationship between soils and the climaticcharacteristics is called
Q98 The first soil category under U S soil taxonomy is
Q99 Soil classification system in which the structure and development processes of soil profile are considered is known as
Q100 Iron copper and manganese are needed in the
Q101 Which of the following nutrient is responsible for the content of protein and amino acid in plant
Q102 Ability of soil to sustain plants is called
Q103 The following are exchangeable cations in the soil except
Q104 The measure of the extent to which the exchange complex is saturated with basic cations is known as
Q105 The following are the causes of soil acidity except
Q106 The ideal value of pH for an agricultural soil in tropical regions is about
Q107 The soil acidity is controlled by using
Q108 The concentration of hydrogen ion in the soil is called
Q109 A layer with the accumulation of nutrient from the topsoil as a result of leaching is known as
Q110 The horizon of the soil profile where unweathered rock materials can be found is
Q111 The downward movement of nutrient from topsoil to subsoil is known as
Q112 The arrangement of soil in different layers
right from the top to the base where the parent rock or parent material
is found is called
Q113 One of the following is not a factor affecting soil formation
Q114 When one looks at a soil profile the first characteristic to be noticed is soil
Q115 On the basis of ped, the following are soil structure types except
Q116 A soil is regarded as pedalfer
Q117 It is sticky when wet and hard when dry this is a characteristic of which type of soil
Q118 Porosity as a measure of pore space of the soil is affected by the following except
Q119 The most conspicuous property of soil that has been used widely to describe and classify it is
Q120 The texture of the soil depends on the constituent of