Description : High quality crop soil requires humus as a major component. Which of the following best describes the composition of humus w) fine sand particles x) decaying organic matter y) mineral like clay matter z) chemical fertilizers
Last Answer : ANSWER: X -- DECAYING ORGANIC MATTER
Description : The deposits of loess in the United States probabl originated as which of the following? w) talus x) rock flour y) humus z) geyserite
Last Answer : ANSWER: X -- ROCK FLOUR
Description : Pick up the correct statement from the following: A. Indore method of composting involves decomposition under aerobic conditions B. Bangalore method of composting involves decomposing under anaerobic conditions C ... the Bangalore method of compositing is a powdery mass called humus D. all of these
Last Answer : ANS: D
Description : Mass of living matter at a trophic level in an area at any time is called (a) standing crop (b) detritus (c) humus (d) standing state.
Last Answer : (a) standing crop
Description : what does humus consist of when talking about humus-rich soil?
Last Answer : Need Answer
Description : where to buy humus
Last Answer : check with anyplace that sells landscape materials in bulk.
Description : What do you understand by Humus? -SST 10th
Last Answer : Humus: The decaying of organic materials, e.g., dead leaves, stems, roots, living bacteria, fungi, worms etc., produce humus, which is important for Soil fertility.
Last Answer : : Humus is more in the upper part of the soil.
Description : In which type of forest is humus formed by dry and dead leaves?
Last Answer : In which type of forest is humus formed by dry and dead leaves? A. Coniferous forest B. Deciduous forest C. Tundra forest D. Alpine
Description : Which is not true for humus?
Last Answer : Which is not true for humus? A. Dark colored amorphous substance B. Highly resistant to ... and fats and produced by the process of mineralization
Description : What is Humus is
Last Answer : Humus is A. Dead and decayed organic matter B. Living matter C. Fertilizers D. Living animal/plants/microbes
Description : What biome contains the most humus?
Last Answer : Need answer
Description : What does most of work of mixing humus within the soil?
Last Answer : Earthworms are the main contributors to enriching and improvingsoil for plants, animals and humans. Earthworms eat the soil whichhas organic matter such as decaying vegetation or leaves. ... releases waste from theirbodies called castings. Castings contain many nutrients that plantscan use.
Description : Black soil derived from volcanic rocks with humus is suitable for growing (a) rice (b) wheat (c) cotton (d) grapes
Last Answer : Ans: (c)
Description : Which is the chief characteristic of the soil of the IndoGangetic plain? (a) It is derived from Himalayan rocks (b) It is rich in humus (c) It is formed of peninsular rocks (d) It is derived from local rocks
Last Answer : Ans: (a)
Description : Consider the following statements about the soils of India : [IAS 2004] 1. High temperature during most of the year retards formation of humus 2. Soils which have humus require regular application of chemical fertilizers to remove nitrogen ... ) 1 and 2 (b) 1, 3 and 4 (c) 2 and 3 (d) 2 and 4
Last Answer : Ans: (b)
Description : Humus is a type of – (1) fossil seen on the rocks (2) decaying organic matters in soil (3) fertilizers applied in soil (4) special growth found in plants
Last Answer : (2) decaying organic matters in soil Explanation: Humus refers to the decomposed and partly decomposed organic matter or animal and vegetation originally present in the soil.
Description : Mountain soil contains a lot of— (1) humus (2) clay (3) coase material (4) iron and aluminium salt
Last Answer : (1) humus Explanation: The distribution of mountain soils is subject mainly to a vertical (elevation) zonation; the soils change with ascent into the mountains depending on changes in climatic conditions. ... content and is thus, very fertile. It is found in Himalayan regions and north-east India.
Description : Alluvial soils are rich soil for crop cultivation but are poor in– (1) humus (2) nitrogen and humus (3) organic material (4) inorganic material
Last Answer : (2) nitrogen and humus Explanation: Alluvial soils are fertile soils composed of sediments deposited by rivers and the waves. However, they are usually deficient in nitrogen and ... With suitable irrigation, fertilizers and proper agricultural practices, alluvial soils are generally very fertile.
Description : The organic matter present in soil is known collectively as – (1) Hydrocarbons (2) Podsols (3) Humus (4) Colloids
Last Answer : (3) Humus Explanation: The organic matter present in soil is known collectively as humus. Humus is fully decomposed and finely divided organic matter. Dune is a hill or ridge of sand accumulated and sorted by wind action.
Description : Which one of the following processes during decomposition is correctly described? (a) Catabolism - Last step in the decomposition under fully anaerobic condition (b) Leaching - Water soluble inorganic ... of a dark coloured substance humus which undergoes microbial action at a very fast rate.
Last Answer : (c) Fragmentation – Carried out by organisms such as earthworm
Description : Deep black soil is productive due to high proportion of (a) sand and zinc (b) gravel and calcium (c) clay and humus (d) silt and earthworm.
Last Answer : (c) clay and humus
Description : The C: N ratio of humus is (A) 20: 1 (B) 100: 1 (C) 10: 1 (D) 400:1
Last Answer : (C) 10: 1
Description : Which one of the following statement not true for organic manure ? a) It enhances water holding capacity of soil . b) It has a balance of all plant nutrients c) It provides humus to soil. d) It improves texture of soil.
Last Answer : b) It has a balance of all plant nutrients
Description : The B-horizon of a pedalfer soil is noted for its accumulation of: w) carbonate x) nitrogen y) humus z) oxides
Last Answer : ANSWER: Z -- OXIDES
Description : Proof that plants can grow and reproduce using onl inorganic nutrients comes from the study of: a) phototrophic nutrition b) mycorrhiza c) hydroponics d) humus
Last Answer : ANSWER: C -- HYDROPONICS
Description : Alluvial soils are rich soil for crop cultivation but are poor in (1) humus (2) nitrogen and humus (3) organic material (4) inorganic material
Last Answer : nitrogen and humus
Description : The organic matter present in soil is known collectively as (1) Hydrocarbons (2)Podsols (3) Humus (4)Colloids
Last Answer : Humus
Description : Alluvial soils are usually (i) Rich in nitrogen (ii) Poor in humus (iii) Highly fertile (iv) Easy to plough (1) (i), (ii) and (iv) (2) (ii), (iii) and (iv) (3) (i), (iii) and (iv) (4) (i), (ii) and (iii)
Last Answer : (i), (ii) and (iii)
Description : Humus is a type of (1) fossil seen on the rocks (2) decaying organic matters in soil (3) fertilizers applied in soil (4) special growth found in plants
Last Answer : decaying organic matters in soil
Last Answer : humus
Description : What is A mixture that is a solution but does not separate because the particles in he mixture are so small is a what?
Last Answer : Feel Free to Answer
Description : In a homogeneous mixture are particles spread evenly throughout the mixture?
Last Answer : no
Description : Trommels separate a mixture of particles depending on their (A) Size (B) Density (C) Wettability (D) Electrical & magnetic properties
Last Answer : (A) Size
Description : The basis of the technique of chromatography for separating components of a mixture is? A. the differing movement of particles of different mass in an electrical field B. the interaction of the ... infrared radiation by the components. D. the deflection of charged particles in a magnetic field.
Last Answer : the interaction of the components with a stationary and a mobile phases
Description : Is the movement of rock particles by wind water or ice?
Description : Pick up the correct statement from the following: (A) To an agriculturist, soil is the substance existing on the earth's surface, which grows and develops plants (B) To a geologist, soil ... and uncemented deposits of minerals and organic particles covering the earth's crust (D) All the above
Last Answer : (D) All the above
Description : Sand particles are made of (A) Rock minerals (B) Kaolinite (C) Illite (D) Montmorillonite
Last Answer : Answer: Option A
Description : Winds are classed as agents of erosion rather than of weathering because: w) they have nothing to do with the weather x) they carry rock particles away y) they work only part of the time z) they build up rather than wear down the rock
Last Answer : ANSWER: X -- THEY CARRY ROCK PARTICLES AWAY
Description : Electricity is carried within an atom by particles called _______.?
Last Answer : electrons and protons
Description : All matter, both living and nonliving, is made up of tiny particles called _______.?
Last Answer : Atoms
Description : Heating a mixture of phosphate rock, coke and sand in an electric furnace produces (A) Phosphoric acid (B) Ammonium phosphate (C) Phosphorous (D) Superphosphate
Last Answer : (C) Phosphorous
Description : A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous. (A) Salt & coke (B) Sand & coke (C) And coke (D) And sand
Last Answer : (B) Sand & coke
Description : A liquid substance _______. A. has particles packed tightly together B. has definite volume C. has definite shape D. has particles arranged in a regular pattern?
Last Answer : has definite volume
Description : If the amount of large and fine particles is about the same in soil the the soil is called ___________ -Science
Last Answer : If the amount of large and fine particles is about the same in soil the the soil is called loamy
Description : In the Gold foil experiment of Geiger and Marsden, that paved the way for Rutherford’s model of an atom, ~ 1.00% of the α-particles were found to deflect at angles > 50º. If one mole of α- -Science
Last Answer : Total number of α particles used for bombardment = 1 mole 1 mole=6.022×1023 particles number of α particles deflected at angles greater than 50°(>50°)= 1% Number of α particles ... at angles less than 50°= 99/100 × 6.022 × 1023 =5.96 × 1023
Description : Name the process to separate the particles of colloid. -Science
Last Answer : Particles of a colloidal solution can be separated by centrifugation. The process employs the principle that particles that are dense settle at the bottom whereas the lighter particles stay at the top when spun rapidly.
Description : Which is not true with respect to cathode rays ? [1] (a) A stream of electrons. (b) Charged particles (c) Move with same speed as that of light. (d) Can be defl ected by magnetic fi eld -Science
Last Answer : Move with speed as that of light is not true with respect to cathode rays.