Description : The process by which nutrient chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil (a) mulching (b) desertification (c) incineration (d) leaching
Last Answer : (d) leaching
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 : "Mulching" is the term used for the process of (a) Covering the roots of plants with loose material, dung, etc. in order to protect them from soil erosion etc. (b) Breaking down big pieces ... into small ones (c) Transplanting of paddy seedlings (d) Nitrogen fixation of soil by use of fertilizers
Last Answer : Ans: (a)
Description : What is the meaning of mineral salts dissolved in water and water together ?
Last Answer : Answer : Mineral salts dissolved in water and water together are called cytoplasm.
Description : The chemicals which induce artificial polyembryony are
Last Answer : The chemicals which induce artificial polyembryony are – 2,4 D; 2,4,5, T, and NAA
Description : Eutrophication results in reduction of a) Dissolved nitrate b) Dissolved Oxygen c) Mineral salts d) Parasitic protozoa.
Last Answer : b) Dissolved Oxygen
Description : Mycorrhizae is associated with the following a) Formation of root nodules b) Hyphae penetrating the soil c) Found mostly in lower plants d) Soil erosion
Last Answer : a) Formation of root nodules
Description : In Bignonia eapreolata pollination is carried out by: (a) Bat (b) Bird (c) Insect (d) Wind
Last Answer : Ans. ((a))
Description : The method of harvesting a crop which leaves the roots and the lower parts of the plant uncut to give the subtle crops is known as - a. Mulching b. Intensive farming c. Ratooning d. Zero tillage farming
Last Answer : c. Ratooning
Description : The non-nutrient chemicals which acts as intercellular messengers and are produced in trace amounts are known as
Last Answer : The non-nutrient chemicals which acts as intercellular messengers and are produced in trace amounts are ... Enzymes B. Mucous C. Hormones D. None
Description : Which of the following statements is correct in relation to the endocrine system? (a) Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messenger are known as ... in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.
Last Answer : (a) Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messenger are known as hormones.
Description : Which one of the change may occur due to desertification? a) decrease in atmospheric temperature b) increase in water holding capacity of soil c) increased chances of flood d)conversion of fertile land into a desert
Last Answer : d)conversion of fertile land into a desert
Description : Leaching of `Ag_(2)S` is carried out by heating it with a dilute solution of:
Last Answer : Leaching of `Ag_(2)S` is carried out by heating it with a dilute solution of: A. NaCN only B. HCl C. NaOH D. NaCN in presence of `O_(2)`
Description : Which one of the following methods of soil conservation is most effective in arid areas? (1) Mulching (2) Shelter belt (3) Gully plugging (4) Terracing
Last Answer : (2) Shelter belt Explanation: In arid zones, the harsh conditions of climate and the shortage of water are intensified by the strong winds. Living conditions and agricultural production can often be ... crops, resulting in higher yields, and provide shelter to livestock, grazing lands, and farms.
Description : The soil moisture conservation technique under covered ground area is called: a. Fertigation b. Mulching c. Microjet irrigation d. Hydraulic
Last Answer : Mulching
Description : Which one of the following methods of soil conservation is most effective in arid areas ? (1) Mulching (2) Shelter belt (3) Gully plugging (4) Terracing
Last Answer : Shelter belt
Description : The factor influencing process of flowerings is: (a) Amount of chlorophyll (b) Soil water (c) Soil pH (d) Photoperiod
Last Answer : Ans. ((d))
Description : The prime contaminants in lakes eutrophied by sewage and agriculture wastes are:
Last Answer : The prime contaminants in lakes eutrophied by sewage and agriculture wastes are: A. Sulphates ... Nitrates and phosphates D. Nitrates and carbonates.
Description : The nurse who provides teaching to the female patient regarding prevention of recurrent urinary tract infections includes which of the following statements? a) Void immediately after sexual intercourse. Voiding ... encouraged to void every 2-3 hours during the day and completely empty the bladder.
Last Answer : a) Void immediately after sexual intercourse. Voiding will serve to flush the urethra, expelling contaminants.
Description : In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process (A) Uses lower grade phosphate rock (B) Requires lower capital investment in the plant (C) Produces lower purity acid (D) Is very costly
Last Answer : (C) Produces lower purity acid
Description : As shown in the illustration, once the "LV" relay is energized for operation, what contacts must remain closed to maintain the "LV" relay energized when the control lever is moved away from the "off" or "stop" ... . B. Reset contacts. C. Upper set of "LVa" contacts. D. Lower set of "LVa" contacts.
Last Answer : Answer: C
Description : As shown in the illustration, what is responsible for maintaining the "LV" relay energized when the master switch handle is moved away from the "off" position? EL-0102 A. "DBa" contact. B. Reset contacts. C. Upper set of "LVa" contacts. D. Lower set of "LVa" contacts.
Description : Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells
Description : Stripping a thin layer of bark completely around a tree trunk will kill the tree, but a deep gouge along one side will not. Why?
Last Answer : It must be remembered that the bark contains the phloem in its innermost region. The circumcision of even a thin layer of bark completely disrupts the movement of organic nutrients from the leaves and ... their strength, it does not reduce their ability to transport nutrients, and so they survive.
Description : When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as
Last Answer : When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as – Included phloem
Description : Cells of aleurone layer function for
Last Answer : Cells of aleurone layer function for – hydrolyzing the food material of seeds
Description : In cereals, the layer containing specialized cells filled with starch are called
Last Answer : In cereals, the layer containing specialized cells filled with starch are called – Aleuron layer
Description : The Tunica layer gives rise to –
Last Answer : The Tunica layer gives rise to – Epidermis only
Description : The main atmospheric layer near the surface of earth is a) Troposphere b) Mesosphere c) Ionosphere d) Stratosphere
Last Answer : a) Troposphere
Description : Chief air pollutant which is likely to deplete ozone layer is a) Sulphur dioxide b) Carbon dioxide c) Carbon monoxide d) Nitrogen oxides and Fluorocarbons.
Last Answer : d) Nitrogen oxides and Fluorocarbons
Description : Ozone layer is found in a) Thermosphere b) Stratosphere c) Mesosphere d) Lithosphere.
Last Answer : b) Stratosphere
Description : What is Soil that has been moved to a location away from its parent bedrock called?
Last Answer : what is soil that has been moved to a location away from itsparent bedrock is called
Description : What is the lower part of the embryo called ?
Last Answer : The lower part of the embryonic stem is called epicotyle.
Description : Consider the following statements: The genetic code said to be degenerate and universal which means that, (1) Amino afids may have more than one codon (2) All amino acids have mo than one codon (3) Codons are common for higher and lower organism (4) Codons are not found in bacteria
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.
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
Description : Wich of the following is a method/process of disposing of solid waste which cannot be re-used or recycled? (1) Landfills (2) Incineration (3) Pyrolysis and Gasification (4) An the above
Last Answer : (4) An the above Explanation: Landfills, Incineration, Pyrolysis and Gasification are methods of disposing of solid waste which cannot be reused or recycled.
Description : Which of the following is a method/process of disposing of solid waste which cannot be reused or recycled ? (1) Landfills (2) Incineration (3) Pyrolysis and Gasification (4) All the above
Last Answer : All the above
Description : How are the ionic or dissolved sediments carried in a stream released?
Last Answer : Sediments are carried as the following loads: dissolved, suspended, and bed. A dissolved load is composed of ions in solution. These ions are usually carried in the water all the way to the ocean. ... large to be carried as suspended loads are bumped and pushed along the stream bed, called bed load.
Description : With regard to the transport of carbon dioxide in blood: a. 25% of carbon dioxide is dissolved in blood b. carbonic anhydrase is found in plasma c. 50% of carbon dioxide is carried as bicarbonate d. deoxygenated haemoglobin facilitates the transport of carbon dioxide
Last Answer : deoxygenated haemoglobin facilitates the transport of carbon dioxide
Description : Thermal algae can live in: (a) Saline soil (b) Hot water streams of 70°C (C) Deserts (d) Snow balls
Last Answer : Ans. ((b))
Description : Minerals in soil body come from a. Weathering of rocks b. Wind and water c. Rains d. Dead organic remains
Last Answer : a. Weathering of rocks
Description : Spraying of DDT produces pollution of a) Air b) Air and Water c) Air and Soil d) Air, Water and Soil.
Last Answer : d) Air, Water and Soil.
Description : Pudding is done to a) Reduce percolation of water b) Pulverise and levelling soil c) Kill weeds D) All of the above
Last Answer : D) All of the above
Description : Water logging of soil makes it physiologically dry because- (a) This condition does not allow the capillary force to work b) this condition does not allow oxygen to enter the soil C) both (a) and (b) d) none of these
Last Answer : b) this condition does not allow oxygen to enter the soil
Description : I like to roam but I'll always stay home,I leave a silver track,If you carried what I could carry with the way I moved,You'd break your neck and back.What am I? -Riddles
Last Answer : A Snail.
Description : In levelling operation (A) When the instrument is being shifted, the staff must not be moved (B) When the staff is being carried forward, the instrument must remain stationary (C) Both (a) and (b) (D) Neither (a) nor (b)
Last Answer : (C) Both (a) and (b)
Description : Soil salinity is measured by: (a) Potometer (b) Porometer (c) Conductivity meter (d) Calorimeter
Last Answer : Ans. ((c))