The process of decomposition of organic matter is termed as

The process of decomposition of organic matter is termed as
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 Ans. Humification
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Decomposition of organic matter is due to (a) Virus (b) Fungi (c) Bacteria (d) None of these

Description : Decomposition of organic matter is due to (a) Virus (b) Fungi (c) Bacteria (d) None of these

Last Answer : Ans:(c)

In very first stage of decomposition of the organic matter in sewage A. Nitrites are formed B. Nitrates are formed C. Carbondioxide is formed D. Ammonia is formed

Description : In very first stage of decomposition of the organic matter in sewage A. Nitrites are formed B. Nitrates are formed C. Carbondioxide is formed D. Ammonia is formed

Last Answer : ANS: D

The sewage treatment units in which anaerobic decomposition of organic matter is used, are called A. Imhoff tanks B. Trickling filters C. Sludge sedimentation tanks D. None of these

Description : The sewage treatment units in which anaerobic decomposition of organic matter is used, are called A. Imhoff tanks B. Trickling filters C. Sludge sedimentation tanks D. None of these

Last Answer : ANS: B

The chemical decomposition produced by micro-organisms on certain organic matter is

Description : The chemical decomposition produced by micro-organisms on certain organic matter is

Last Answer : called fermentation.

Most of Nitrogen is used in the decomposition of __________ and thus plant shows deficiency symptoms : a. Amino acids b. Cellulose c. Carbon compounds d. Organic matter

Description : Most of Nitrogen is used in the decomposition of __________ and thus plant shows deficiency symptoms : a. Amino acids b. Cellulose c. Carbon compounds d. Organic matter

Last Answer : Cellulose

Pick out the wrong statement.(A) Biological oxygen demand (BOD) is a characteristic and not a constituent of water (B) BOD is a measure of the amount of oxygen which will be demanded & used in 5 days by the biological decomposition of the organic matter present in water stream present as food for the living organism (C) BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable water) (D) None of these

Description : Pick out the wrong statement. (A) Biological oxygen demand (BOD) is a characteristic and not a constituent of water (B) BOD is a measure of the amount of oxygen which will be demanded & used in 5 days ... BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable water) (D) None of these

Last Answer : (D) None of these

The organic matter rich compost made by use of earthworms

Description : The organic matter rich compost made by use of earthworms

Last Answer : Ans. Vermicompost

A mass of rotted organic matter made from waste

Description : A mass of rotted organic matter made from waste

Last Answer : Ans. Compost

The soil having more than 30% organic matter is placed in

Description : The soil having more than 30% organic matter is placed in

Last Answer : Ans. Histosol

The C/N ratio in the organic matter of furrow slice (upper 15 cm) of arable soils commonly ranges from

Description : The C/N ratio in the organic matter of furrow slice (upper 15 cm) of arable soils commonly ranges from

Last Answer : Ans. 8:1 to 15:1

Organic matter content in Indian soil is

Description : Organic matter content in Indian soil is

Last Answer : Ans. 5 %

In an ecosystem the rate of production of organic matter during photosynthesis is termed as

Description : In an ecosystem the rate of production of organic matter during photosynthesis is termed as

Last Answer : In an ecosystem the rate of production of organic matter during photosynthesis is termed as ... . Gross primary productivity D. Secondary productivity

In an ecosystem the rate of production of organic matter during photosynthesis is termed as (a) secondary productivity (b) net productivity (c) net primary productivity (d) gross primary productivity.

Description : In an ecosystem the rate of production of organic matter during photosynthesis is termed as (a) secondary productivity (b) net productivity (c) net primary productivity (d) gross primary productivity.

Last Answer : (d) gross primary productivity.

Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect? (1) It converts the waste into solid, liquid and gas of which the resultant liquid and gas can be used to produce energy. (2) The process occurs at a temperature above 430°C at atmospheric pressure. (3) The process occurs under high pressure at temperature above 430° C. (4) It is a thermo chemical decomposition of organic waste

Description : Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect? (1) It converts the waste into solid, liquid and gas of which the resultant liquid ... pressure at temperature above 430° C. (4) It is a thermo chemical decomposition of organic waste

Last Answer : (2) The process occurs at a temperature above 430°C at atmospheric pressure. Explanation: Pyrolysis is a thermo-chemical decomposition of organic material at elevated temperatures in the ... . Pyrolysis generally takes place well above atmospheric pressure at temperatures exceeding above 430 °C.

Fermentation is a process of decomposition of an organic compound by (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Description : Fermentation is a process of decomposition of an organic compound by (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Last Answer : (2) enzymes Explanation: Fermentation in food processing typically is the conversion of carbohydrates to alcohols and carbon dioxide or organic acids using yeasts, bacteria, or a combination there ... to lactic acid. Alcoholic fermentation follows the same enzymatic pathway for the first 10 steps.

Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect? (1) It converts the waste into solid, liquid and gas of which the resultant liquid and gas can be used to produce energy. (2) The process occurs at a temperature above 430°C at atmospheric pressure. (3) The process occurs under high pressure at temperature above 430° C. (4) It is a thermochemical decomposition of organic waste

Description : Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect? (1) It converts the waste into solid, liquid and gas of which the resultant ... high pressure at temperature above 430° C. (4) It is a thermochemical decomposition of organic waste

Last Answer : The process occurs at a temperature above 430°C at atmospheric pressure.

Fermentation is a process of decomposition of an organic compound by : (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Description : Fermentation is a process of decomposition of an organic compound by : (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Last Answer : enzymes

Organic compounds which inhibit or modify any physiological process

Description : Organic compounds which inhibit or modify any physiological process

Last Answer : Ans. Plant Growth Regulators (PGRs)

When farm is classified on the basis of organizational setup, termed as

Description : When farm is classified on the basis of organizational setup, termed as

Last Answer : Ans. System of farming

When farms is classified on the basis of utilization of land and resources, termed as

Description : When farms is classified on the basis of utilization of land and resources, termed as

Last Answer : Ans. Types of Farming

Transformation of physical inputs into physical outputs is termed as

Description : Transformation of physical inputs into physical outputs is termed as

Last Answer : Ans. Production

Risks arise due to changes in Government policies are termed as a

Description : Risks arise due to changes in Government policies are termed as a

Last Answer : Ans. Institutional risk

Seed processing is termed as

Description : Seed processing is termed as

Last Answer : Ans. Grading

Superiority of F1 hybrids over both of its parents is termed as

Description : Superiority of F1 hybrids over both of its parents is termed as

Last Answer : Ans. Heterosis

Pollination and fertilization occurs before opening of flower is termed as

Description : Pollination and fertilization occurs before opening of flower is termed as

Last Answer : Ans. Cleistogamy

Solution whose strength or concentration is accurately known is termed as

Description : Solution whose strength or concentration is accurately known is termed as

Last Answer : Ans. Standard solution

The relative proportion of sand, silt and clay is termed as

Description : The relative proportion of sand, silt and clay is termed as

Last Answer : Ans. Soil texture

An aggregation of minute drops of water suspended in the air at higher altitude termed as

Description : An aggregation of minute drops of water suspended in the air at higher altitude termed as

Last Answer : Ans. Clouds

The biological decomposition of organic substances in wastes under controlled conditions known as - (1) composting (2) incineration (3) sanitary landfill (4) pyrolysis

Description : The biological decomposition of organic substances in wastes under controlled conditions known as - (1) composting (2) incineration (3) sanitary landfill (4) pyrolysis

Last Answer : (1) composting

In septic tanks, decomposition of organic bacteria, is done by A. Anaerobic bacteria B. Aerobic bacteria C. Both types of bacterias D. None of these

Description : In septic tanks, decomposition of organic bacteria, is done by A. Anaerobic bacteria B. Aerobic bacteria C. Both types of bacterias D. None of these

Last Answer : ANS: A

Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) Decomposition of organic nitrogen and conversion of dinitrogen to ammonium compounds (c) Enteric fermentation in cattle and nitrogen fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Last Answer : (d) Anaerobic ammonium oxidation and denitrification

Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. Mycorrhiza (iv) Symbiotic association of algae and fungi Choose the correct answer from the options given below. (A) (B) (C) (D) (a) (ii) (iii) (iv) (i) (b) (i) (ii) (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Description : Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. ... (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Last Answer : (a) (ii) (iii) (iv) (i)

Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is (A) H2 (B) CH4 (C) CO2 (D) N2

Description : Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is (A) H2 (B) CH4 (C) CO2 (D) N2

Last Answer : (B) CH4

The biological decomposition of organic substances in wastes controlled conditions is called (A) Incineration (B) Biological oxidation(C) Composting(D) None of these

Description : The biological decomposition of organic substances in wastes controlled conditions is called (A) Incineration (B) Biological oxidation (C) Composting (D) None of these

Last Answer : (C) Composting

What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax.

Description : What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax.

Last Answer : c. Cultivation of earthworms, for decomposition of organic waste

What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste

Description : What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste

Last Answer : c. Cultivation of earthworms, for decomposition of organic waste

What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax

Description : What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax

Last Answer : c. Cultivation of earthworms, for decomposition of organic waste

What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste

Description : What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste

Last Answer : c. Cultivation of earthworms, for decomposition of organic waste

The biological decomposition of organic substances in wastes under controlled conditions known as (1) composting (2) incineration (3) sanitary landfill (4) pyrolysis

Description : The biological decomposition of organic substances in wastes under controlled conditions known as (1) composting (2) incineration (3) sanitary landfill (4) pyrolysis

Last Answer : composting

Sulphur dioxide bleaches colouring matter by – (1) Reduction (2) Dehydration (3) Decomposition (4) Oxidation

Description : Sulphur dioxide bleaches colouring matter by – (1) Reduction (2) Dehydration (3) Decomposition (4) Oxidation

Last Answer : (1) Reduction Explanation: Sulphur dioxide gas exhibits bleaching properties in presence of moisture. It dissolves in water liberating nascent hydrogen. Nascent hydrogen removes oxygen atoms from the colouring matter (reduces colouring matter) and it loses its colour.

All decomposition reaction are endothermic but decomposition of vegetable matter into compost is exothermic because (a) It is an oxidation reaction (b) decomposition done by microbes (c) releases heat energy (d) all the above

Description : All decomposition reaction are endothermic but decomposition of vegetable matter into compost is exothermic because (a) It is an oxidation reaction (b) decomposition done by microbes (c) releases heat energy (d) all the above

Last Answer : (d) all the above

Black cotton soils are a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering* b) Compacted and laminated clays c) Soils containing carbon of coal underneath d) Dark brown earthy materials formed due to partial or complete decomposition of vegetable matter

Description : Black cotton soils are a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering* b) Compacted and ... underneath d) Dark brown earthy materials formed due to partial or complete decomposition of vegetable matter

Last Answer : a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering*

Sulphur dioxide bleaches colouring matter by : (1) Reduction (2) Dehydration (3) Decomposition (4) Oxidation

Description : Sulphur dioxide bleaches colouring matter by : (1) Reduction (2) Dehydration (3) Decomposition (4) Oxidation

Last Answer : Reduction

Which one is considered as organic fertilizer?

Description : Which one is considered as organic fertilizer?

Last Answer : Ans. Urea

Protein portion of an enzyme when it is combined with organic molecule is termed as A- apoenzyme B- co-enzyme C- holoenzyme D- co-factors

Description : Protein portion of an enzyme when it is combined with organic molecule is termed as A- apoenzyme B- co-enzyme C- holoenzyme D- co-factors

Last Answer : apoenzyme

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 is the material in a relatively thin surface zone within which roots occur, and rest of the crust is termed as rock irrespective of hardness (C) To an engineer, soil is the unaggregated and uncemented deposits of minerals and organic particles covering the earth's crust (D) All the above

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

The biological process in which both aerobes and anaerobes degrade organic matter is - (1) Manuring (2) Composting (3) Digesting (4) Nitrifying

Description : The biological process in which both aerobes and anaerobes degrade organic matter is - (1) Manuring (2) Composting (3) Digesting (4) Nitrifying

Last Answer : (2) Composting Explanation: Composting is the depomposition of plant remains and other once-living materials to make an earthy, dark, crumbly substance that is excellent for enriching soil. It is the chief way to recycle wastes.

Pick up the incorrect statement from the following: A. The process of decomposing the organic matter under controlled anaerobic conditions, is called sludge digestion B. Sludge digestion is carried out in sludge tank C. The gases produced in sludge digestion process, contain 75% carbon dioxide D. The gases produced in sludge digestion process, contain 75% methane

Description : Pick up the incorrect statement from the following: A. The process of decomposing the organic matter under controlled anaerobic conditions, is called sludge digestion B. Sludge digestion is carried ... contain 75% carbon dioxide D. The gases produced in sludge digestion process, contain 75% methane

Last Answer : ANS: C

In context to agriculture what is “Fallow Land”? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its acidity. c. Agricultural field which is water logged before rice cultivation so that soil’s water retention capacity increases d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored

Description : In context to agriculture what is Fallow Land ? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its ... . Agriculture field which is left unplanted so that the soil's natural nutrient balance can be restored

Last Answer : d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored.

In context to agriculture what is “Fallow Land”? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its acidity. c. Agricultural field which is water logged before rice cultivation so that soil’s water retention capacity increases d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored.

Description : In context to agriculture what is Fallow Land ? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its ... Agriculture field which is left unplanted so that the soil's natural nutrient balance can be restored.

Last Answer : d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored