Description : The organic matter present in soil is known collectively as (1) Hydrocarbons (2)Podsols (3) Humus (4)Colloids
Last Answer : Humus
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 : 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 : 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 soils which are rich in Calcium are known as – (1) Pedocals (2) Pedalfers (3) Podsols (4) Laterites
Last Answer : (1) Pedocals Explanation: 'Terra Rossa' in Latin or Italian language is another name for "Red Soil" or "Red Terrain". It is a type of red clay soil produced by the weathering of limestone. Terra Rossa is typically found in regions with a Mediterranean climate.
Description : The asha-grey soils of high-latitude coniferous forests a known as : (1) Tundra soils (2) Podsols (3) Grey-Brown soils (4) Red and Yellow soils
Last Answer : (2) Podsols Explanation: Podsols are ash-grey coloured soils that are found in high-latitude coniferous forest belt having very long cold winters, short cool summers and a moderate precipitation ... . infertile and of limited value for agriculture. These are useful for dairying and mixed farming.
Description : Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) ... to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
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 : 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 : 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
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 : 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 : For the cultivation of Tobacco the soil should be rich in – (1) calcareous matter (2) nitrogen (3) organic content (4) potash
Last Answer : (4) potash Explanation: Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the ... such as plant remains, and this was the major historical source for it before the industrial era.
Description : Pheretima posthuma is highly useful as (a) their burrows make the soil loose (b) they make the soil porous, leave their castings and take organic debris in the soil (c) they are used as fish meal (d) they kill the birds due to biomagnification of chlorinated hydrocarbons.
Last Answer : (b) they make the soil porous, leave their castings and take organic debris in the soil
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 : The asha–grey soils of high–latitude coniferous forests a known as : (1) Tundra soils (2) Podsols (3) Grey–Brown soils (4) Red and Yellow soils
Last Answer : Podsols
Description : The soils which are rich in Calcium are known as (1) Pedocals (2) Pedalfers (3) Podsols (4) Laterites
Last Answer : Pedocals
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 : 1. Which disease is caused by bacteria and spread though faecal matter by houseflies? 2. Who is the ex-officio Chairman of Rajya Sabha? 3. Which colloids are solvent loving colloids? 4. ... to the formation of the Himalayas? 20. The Maratha power reached its zenith during which Peshwaship?
Last Answer : Answer : 1. Typhoid 2. Vice-President 3. Lyophilic 4. Pondicherry 5. Sher Shah 6. Merv Hughes 7. Disguised 8. Aquarium 9. Tamil Nadu 10. Guru Gobind Singh 11. Regulating Act 12. Metal 13 ... 16. Lausanne 17. Biology and diversity 18. Justice Ramaswami 19. Folding of the geosyncline 20. Balaji II
Description : What are the organic matter present in the soil ?
Last Answer : Organic matter present in the soil is: Leech , earthworm refers to such animals or their feces.
Description : Which of the following is incorrect? (a) Red soils are rich in iron (b) Black soils are rich in phosphorus nitrogen and organic matter (c) Alluvial soils are rich in potash but poor in phosphorus (d) Red soils are suitable for cultivation of pulses and coarse grains
Description : what does humus consist of when talking about humus-rich soil?
Last Answer : Need Answer
Last Answer : : Humus is more in the upper part of the soil.
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 : 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 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
Last Answer : humus
Description : The sphere of living matter together with water, air and soil on the surface of the earth is known as – (1) Lithosphere (2) Biosphere (3) Hydrosphere (4) Atmosphere
Last Answer : (2) Biosphere Explanation: Part of the Earth's surface and atmosphere that contains the entire terrestrial ecosystem, and extends from ocean depths to about six kilometers above sea level. Not ... supports them soil, subsurface water, bodies of water, air and includes hydrosphere and lithosphere.
Description : Gypsum is used for improvement of: (1) Alkaline soils (2) Saline soils (3) (3) Podsols (4) (4) Acidic soils
Last Answer : (2) Saline soils Explanatioqn: Gypsum is calcium sulfate which is essential to the sustainability of most irrigated soils. Irrigated land eventually leads to sodieity and salinity unless extreme care is ... improves sodic (saline) soils by removing sodium from the soil and replacing it with calcium.
Description : Gypsum is used for improvement of: (1) Alkaline soils (2) Saline soils (3) Podsols (4) Acidic soils
Last Answer : Saline soils
Description : $ Those two pairs of genes which if present in dominant stage, do not produce any expression but when present collectively in dominant stage, produce
Last Answer : $ Those two pairs of genes which if present in dominant stage, do not produce any expression but when ... wrong D. If both As and R are wrong.
Description : A family of organic compounds whose molecules will add water under an acid catalysis and change into alcohols are the: w) alkenes x) alkanes y) aromatic hydrocarbons z) cycloalkanes
Last Answer : ANSWER: W -- ALKENES
Description : In neutral fats, the unsaponificable matter includes (A) Hydrocarbons (B) Triacylglycerol (C) Phospholipids (D) Cholsesterol
Last Answer : Answer : A
Description : Water soluble molecular aggregates of lipids are known as (A) Micelle (B) Colloids (C) Sphingol (D) Mucin
Description : Non living substances of the protoplasm are collectively known as -Biology
Last Answer : answer:
Description : In aquatic environment, microscopic animals and plants are collectively known as
Last Answer : In aquatic environment, microscopic animals and plants are collectively known as A. Commensals B. Herbivores C. Fauna and Flora D. Planktons
Description : What are the neutrons and protons in an atom collectively known as?
Last Answer : Nucleons
Description : Protons and Neutrons are collectively known as?
Description : Cryptography is an interdisciplinary subject, drawing from several fields. Before the time of computers, it was closely related to linguistic. Nowadays the emphasis has shifted, and cryptography makes extensive use ... as _______mathematics: a) Increte b) Discrete c) Both of Above d) None of These
Last Answer : b) Discrete
Description : Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations
Last Answer : ANSWER: Z -- MAXWELL'S EQUATIONS
Description : In studies of cells, the nuclei, mitochondria, endoplasmic reticulum, dictyosomes, microbodies and plastids are collectively known as what in the eucaryotic cell?
Last Answer : ANSWER: ORGANELLES
Description : A process which defines a series of tasks that have the following four primary objectives is known as 1. to identify all items that collectively define the software configuration. 2. to ... Management Process (C) Software Version Management Process (D) Software Change Management Process
Last Answer : (B) Software Configuration Management Process
Description : Which fertilizer should be used if soil organic matter is low ?
Last Answer : If the soil organic matter is low then compost manure should be used.
Description : The soil having more than 30% organic matter is placed in
Last Answer : Ans. Histosol
Description : Organic matter content in Indian soil is
Last Answer : Ans. 5 %
Description : Which of the following rotations is likely to leave soil richer in organic matter?
Last Answer : Ans.Maize – Oats - Clovers
Description : he soil which is found in the areas having heavy rainfall and high humidity, contains large quantity of organic matter and heavy and black in colour – a. Black soil b. Peat soil c. Forest soil d. Laterite soil
Last Answer : b. Peat soil