Description : (2) Nitrogen, Phosphorous and Sodium Explanation: Fertilizer (or fertiliser) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a ... essential to the growth of plants. The three elements most needed in common fertilisers are Nitrogen.
Last Answer : Metal are good conductors, because – (1) they contain free electrons (2) the molecules in them are very close to each other (3) the molecules in them collide very freely (4) they contain reflecting surface
Description : Pick out the wrong statement. (A) All the nitrogenous fertilisers are not soluble in water (B) A straight fertiliser contains only one nutrient (C) Calcium cyanamide is used as weed killer in onion fields (D) The phosphorous nutrient makes the plant stem stronger and increases its branches
Last Answer : (A) All the nitrogenous fertilisers are not soluble in water
Description : Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the (A) Osmotic pressure of the soil water becomes less than that of the plant sap (B) Soil ... pressure of the soil water becomes higher than that of the plant sap (D) Soil becomes too acidic
Last Answer : (C) Osmotic pressure of the soil water becomes higher than that of the plant sa
Description : Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by (A) Steam reforming of naphtha and cracking of natural gas (B) Electrolysis of water (C) Cryogenic separation of hydrogen from coke oven gas (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil. (A) Nutrient supply (B) Texture (C) Water holding capacity (D) All (A), (B) and (C)
Description : Which of the following agricultural practices have been primarily responsible for pollution of our water resources ? A. Use of live-stock manure B. Use of chemical fertilisers C. Excessive use of chemical pesticides D. Deforestation (1) B and C (2) A, C and D (3) A and B (4) A, B and D
Last Answer : B and C
Description : Why are manures and fertilisers used in the fi elds? -Biology
Last Answer : Complete - All these nutrients are essential for plant growth, thus using manure as fertilizers in fields provide crops with all required growth factors. ... It provides humus to the soil and is less rich in plant nutrients.
Description : Indiscriminate use of fertilisers causes
Last Answer : Indiscriminate use of fertilisers causes A. Air pollution B. water pollution C. Land pollution D. All of the above
Description : Which of the following fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium
Last Answer : Ans: (b)
Description : HBJ pipe line is being laid for a distance of 1730 km in order to (a) provide cooking gas for villages (b) provide employment for rural population (c) provide feedstock for six large fertilisers (d) serve the power requirements of many states
Last Answer : Ans: (c)
Description : Match the following : [CDS 2001] City Industry A. Bangalkot 1. Paper B. Sindri 2. Chemical C. Dandeli 3. Cement D. Vadodara 4. Fertilisers 5. Machine tools A B C D (a) 3 4 1 2 (b) 3 5 2 4 (c) 5 3 1 2 (d) 1 4 2 5
Last Answer : Ans: (a)
Description : Which of the following is/are methods of checking soil erosion? 1. Strip cropping 2. Contour ploughing 3. Use of irrigation and fertilisers 4. Terrace farming (a) 1 and 2 (b) 3 and 4 (c) 2, 3 and 4 (d) 1, 2, 3 and 4
Last Answer : Ans: (d)
Description : Which one of the following elements is least likely to be found in commercial fertilisers? (1) Nitrogen (2) Phosphorus (3) Potassium (4) Silicon
Last Answer : (4) Silicon Explanation: Commercial Fertilizers - a substance containing one or more recognized plant nutrients and that is used for its plant nutrient content or that is designated for use or claimed to have value in promoting plant growth.
Description : Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant? (A) Ammonium sulphate (B) Ammonium nitrate (C) Ammonium phosphate (D) None of these
Last Answer : (A) Ammonium sulphate
Description : Self-priming centrifugal pump can be used for (A) Booster service (B) Pumping liquid fertilisers (e.g. liquid NH3 ) (C) Pumping industrial wastes (D) All (A), (B) and (C)
Description : Which of the following fertilisers contains the least percentage of nitrogen? (A) Liquid ammonia (B) Urea (C) Ammonium phosphate (D) Ammonium sulphate
Last Answer : (C) Ammonium phosphate
Description : Which of the following fertilisers is used as a cattle feed? (A) Urea (B) Calcium ammonium nitrate (C) Superphosphate (D) Ammonium sulphate
Last Answer : (A) Urea
Description : ch of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth? (A) Nitrogenous fertiliser (B) Potassic fertiliser (C) Phosphatic fertiliser (D) None of these
Last Answer : (A) Nitrogenous fertilise
Description : Phosphatic fertilisers (A) Are useful during early stage of the plant growth (B) Accelerate fruit formation in later stages of growth (C) Lessen the effect of excessive nitrogen application (D) None of these
Last Answer : (B) Accelerate fruit formation in later stages of growth
Description : Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits? (A) Nitrogenous fertilisers (B) Phosphatic fertilisers (C) Potassic fertiliser (D) None of these
Last Answer : (C) Potassic fertiliser
Description : Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? (A) Calcium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium sulphate
Last Answer : (C) Urea
Description : Potassic fertilisers do not promote the development of (A) Stems & leaves during early stage of plant growth (B) Starches of potatoes & grains (C) Sugar of fruits & vegetables (D) Fibrous materials of plants
Last Answer : (A) Stems & leaves during early stage of plant growth
Description : Potassic fertilisers (A) Are useful during early stage of the plant growth (B) Stimulate early growth and accelerate seeding (C) Help in development of starches of potatoes and grain (D) None of these
Last Answer : (C) Help in development of starches of potatoes and grain
Description : Commercial fertilisers are available mostly in the form of (A) Powder (B) Granules (C) Lumps (D) Flakes
Last Answer : (B) Granules
Description : Which of the following is not a measure component necessarily to be present in fertilisers? (A) Nitrogen (B) Potassium (C) Phosphorous (D) Sulphur
Last Answer : (D) Sulphur
Description : 5-10-5 fertilisers mean that they contain (A) 5, 10, 5% respectively of N2 , P2O5 and K2O (B) Only 5 to 10% active fertiliser constituents (C) 5 to 10% filler & carrier of soil conditioners (D) None of these
Last Answer : (A) 5, 10, 5% respectively of N2 , P2O5 and K2O
Description : . Nitric acid is not used in the manufacture of (A) Detergents (B) Fertilisers (C) Aqua regia (D) Explosives
Last Answer : (A) Detergents
Description : When domestic sewage / fertilisers is released into rivers , the growth of algae and bacteria is a) promoted b)not affected c)inhibited d)None of the above
Last Answer : a) promoted
Description : Which one of the following elements is least likely to be found in commercial fertilisers? (1) Nitrogen (2) Phosphorous (3) Potassium (4) Silicon
Last Answer : Silicon
Description : The three elements most needed in common fertilisers are : (1) Sulphur, Phosphorous and Sodium (2) Nitrogen, Potassium and Phosphorous (3) Phosphorous, Sodium and Nitrogen (4) Calcium, Phosphorous and Potassium
Last Answer : Nitrogen, Potassium and Phosphorous
Description : In the new Panchayati Raj Bill enacted in 1993, there are several fresh provisions deviating from the past. Which one of the following is not one such provisions? (1) A number of ... strength (4) Regular remuneration to the panchayat members, so as to ensure their punctuality and accountability
Last Answer : (4) Regular remuneration to the panchayat members, so as to ensure their punctuality and accountability Explanation: Provision given in option (4) is not included under 73rd amendment act 1993.
Description : Moisture absorbed in the windings or condensed on the surface of electrical machinery insulation ________. A. is good for long term preserving since most insulation is organic and contains some amount B. ... D. reduces the amount of current supplied or drawn by the machine so horsepower is limited
Last Answer : Answer: B
Description : Do cooked fresh jalapeno peppers cause bad breath?
Last Answer : Not that I know of or have experienced. Are you sure your husband is not using that as a way to say he would not care to have them? It should, in the end, be his call since he has to eat the lunches.
Description : 8. If pollutants are added continuously in a water body they will cause a) increase in BOD b) decrease in BOD c) death of all plants d) increase in oxygen concentration
Last Answer : a) increase in BOD
Description : In froth floatation, chemical agent added to cause air adherence is called (A) Collector (B) Frother (C) Modifier (D) Activato
Last Answer : (A) Collector
Description : The following is true in the treatment of epilepsy except: A. The choice of drug depends on the cause of epilepsy and not on the seizure type B. Treatment should be instituted as early as possible ... to response D. Withdrawal of drug can be attempted if no seizures have occurred for 3-5 years
Last Answer : A. The choice of drug depends on the cause of epilepsy and not on the seizure type