Description : In wind erosion floating of less than 0.1 mm soil particle is observed in — stage a. Saltation b. Surface creep c. Suspension d. None of these
Last Answer : c. Suspension
Description : The main cause of recurring flood is – (1) Soil erosion (2) Deforestation (3) Silting of river beds (4) All of the above
Last Answer : (4) All of the above Explanation: Floods are caused by a variety of factors, both natural and man-made. Apart from soil erosion and silting of river beds which force the water of rivers ... against water flow and in turn protect the underlying soil from getting eroded and then getting washed away.
Description : The main cause of recurring flood is (1) Soil erosion (2) Deforestation (3) Silting of river beds (4) All of the above
Last Answer : All of the above
Description : Which of the following was not a purpose for building Farakka Barrage? (1) Checking water flowing into Bangladesh (2) Checking silting of Kolkata Port (3) Preventing erosion of Kolkata Port (4) Facilitating navigation in Ganga river
Last Answer : (4) Facilitating navigation in Ganga river Explanation: The Farakka Barrage was created by India in 1975 to divert water from the Ganges River to the Bhagirathi-Hooghly river system. It was ... to flush out the sediment deposition from the Kolkata harbour and thus prevent erosion of Kolkata port.
Description : Slow and progressive deformation of a material with time under constant stress is called (A) Creep (B) Erosion (C) Resilience (D) None of these
Last Answer : (A) Creep
Description : Soil erosion can be prevented by – (1) Increasing bird population (2) Afforestation (3) Removal of vegetation (4) Overgrazing
Last Answer : (2) Afforestation Explanation: Soil erosion takes place when the soil is blown away by the wind or washed away by the rain. Afforestation or planting trees can check soil erosion as roots of trees/ ... planted their roots don't allow the soil to be blown or washed away and prevent soil erosion.
Description : Soil erosion can be prevented by (1) Increasing bird population (2) Afforestation (3) Removal of vegetation (4) Overgrazing
Last Answer : Afforestation
Description : Which one of the following forces leads to maximum soil erosion in plains? (a) Wind (b) Glacier (c) Running water (d) Earthquake
Last Answer : Which one of the following forces leads to maximum soil erosion in plains? (a) Wind (b) Glacier (c) Running water (d) Earthquake
Description : Give one difference between the following: (i) Khadar soil and Bangar soil. (ii) Sheet erosion and Wind erosion. -Geography
Last Answer : Bhangar Khadar (1) It belongs to Old alluvium. It belongs to New alluvium. (2) It is less fertile It is more fertile (3) It is non porous, claying and loamy. It is calcareous clay. (4) It is ... 1) It occurs in desert areas. (2) Agent of denudation is running water (2) Agent of denudation is wind.
Description : About 50-75% of soil erosion by wind is carried out by
Last Answer : Ans.Saltation
Description : What are the types of soil movement in the process of wind erosion?
Last Answer : Ans.Saltation, Suspension and Surface creep
Description : Wind Erosion will be higher from? a. Clay Soil b. Sandy Soil c. A barren sandy soil d. Loam Soil e. None of these
Last Answer : c. A barren sandy soil
Description : Removal of the soil by the action of wind and water is known as
Last Answer : Removal of the soil by the action of wind and water is known as A. Erosion B. Fossilization C. Leaching D. Calcification
Description : Soils in the Mahanadi delta are less fertile than those in the Godavari delta because of: (A) erosion of top soils by annual floods (B) inundation of land by sea water (C) traditional agriculture practices (D) the derivation of alluvial soil from red-soil hinterland
Last Answer : Answer: A The Mahanadi was notorious for its devastating floods for much of recorded history. Thus it was called 'the sorrow of Orissa'. However the construction of the Hirakud Dam has greatly ... matter of great concern. Indiscriminate damming along the river has been cited as an obvious reason.
Description : What Erosion is the removal and transportation of weathered and non weathered materials by?
Last Answer : What is the answer ?
Description : Absorption with chemical reaction' is involved in the removal of (A) Carbon dioxide from gaseous stream using alkaline solution (B) Benzol from coke oven gas using solar oil/wash oil (C) Ammonia ... gas using refrigerated water (D) Tar from coke oven gas in primary gas coolers using chilled water
Last Answer : (A) Carbon dioxide from gaseous stream using alkaline solution
Description : The first step in decontamination is a. Removal of the patient's clothing and jewelry and then rinsing the patient with water. To be effective, decontamination must include a minimum of two steps. The ... the patient with water. The second step consists of a thorough soap and water wash and rinse.
Last Answer : a. Removal of the patient's clothing and jewelry and then rinsing the patient with water. To be effective, decontamination must include a minimum of two steps. The first step is removal of the patient ... the patient with water. The second step consists of a thorough soap and water wash and rinse.
Description : The increased incidence of floods in recent times in North India is due to – (1) increase in the annual rainfall, (2) increase in the silting of dams, (3) increased deforestation in the catchment area, (4) None of these
Last Answer : (3) increased deforestation in the catchment area, Explanation: The frequency and severity of flooding in the Gangetic plain has steadily increased in recent years. Deforestation of the Terai appears to be one of the major causes.
Description : With self cleansing velocity in sewers A. Silting occurs at bottom B. Scouring occurs at bottom C. Both silting and scouring occur at bottom D. Neither silting nor scouring occurs at bottom
Last Answer : ANS: D
Description : Clogging of sewers, is caused due to A. Silting B. Low discharge C. Greasy and oily matters D. All the above
Description : In sewers designed with self cleansing velocity, A. The bottom is silted B. The bottom is scoured C. Both silting and scouring occur at the bottom D. Neither silting nor scouring occurs at the bottom
Description : Economic height of a dam is the height corresponding to which (A) Cost of the dam per unit of storage is minimum (B) Amount of silting is less (C) Cost of dam per unit storage is maximum (D) Free board provided is least
Last Answer : (A) Cost of the dam per unit of storage is minimum
Description : The rate of silting in a reservoir (A) Is less in the beginning (B) Remains constant throughout (C) Is more in the beginning (D) is more in the beginning and reduces in the end
Last Answer : (D) is more in the beginning and reduces in the end
Description : A river bend characterized by silting (A) Scouring on concave side (B) Silting on convex side (C) Scouring on convex side and on concave side (D) Scouring on concave side and silting on convex side
Last Answer : Answer: Option D
Description : An aggrading river is a (A) Silting river (B) Scouring river (C) Both silting and scouring river (D) Neither silting nor scouring river
Last Answer : Answer: Option A
Description : Soundings are required for (A) Making nautical charts for navigation (B) Ascertaining the areas subject to scour or silting (C) Obtaining detailed information for construction (D) All the above
Last Answer : (D) All the above
Description : Two different channels, M and N, in two different sites are designed based on Lacey's theory, to carry same quantum of discharge. But the bed material of M is found to be finer than that of N. a) ... slope c) Channels M and N can have same longitudinal slopes d) Silting is more in M than in N
Last Answer : b) Channel N will have steeper longitudinal slope
Description : Justify the remedial measures for the following defects in earthen road: i) Formation of dust during dry weather ii) Growth of vegetation inside drains and their silting up
Last Answer : i) Formation of dust during dry weather: The dust nuisance may be remedied by the following methods: Frequent sprinkling of water Treatment with calcium chloride Use of other dust palliatives Use of ... the drain. Silting up of weeds, plants, bushes etc. causes obstruction in the flow of water.
Description : Enlist the factors affecting on silting of reservoir.
Last Answer : a) Catchment area b) Shape of catchment c) Slope of country d) Nature of surface soil e) Climatic conditions f) Rainfall characteristics g) Vegetation cover h) Construction of check dam
Description : Hydraulic Action is a type of erosion caused by – (1) Running water (2) Wind (3) Glacier (4) None of these
Last Answer : (1) Running water Explanation: Hydraulic action is one of the main forms of river erosion (example, of erosion due to running water) in which the force of the river against the banks can cause air to be trapped in cracks and crevices. The pressure weakens the banks and gradually wears it away.
Description : Which of the following processes is responsible for producing the sand dunes in western Rajasthan? (1) Wind erosion (2) Erosion by water (3) Wind deposition (4) Mechanical weathering
Last Answer : (3) Wind deposition Explanation: In physical geography, a dune is a hill of sand built either by wind or water flow. Dunes occur in different forms and sizes, formed by interaction with the flow ... the sand grains: and (3) a topography whereby the sand particles lose their momentum and settle out.
Description : What are the major constraint for Dryland farming. a. Wind Erosion b. Water Erosion c. Sheet Erosion d. Both Wind and Water erosion
Last Answer : d. Both Wind and Water erosion
Description : Saltation is a process of _____ erosion a. Water b. Wind c. Both a & b d. None of these
Last Answer : b. Wind
Description : Which of the following processes is responsible for producing the sand dunes in western Rajasthan ? (1) Wind erosion (2) Erosion by water (3) Wind deposition (4) Mechanical weathering
Last Answer : Wind deposition
Description : Hydraulic Action is a type of erosion caused by (1) Running water (2) Wind (3) Glacier (4) None of these
Last Answer : Running water
Description : What is the answer plantings of vegetation to slow wind erosion called?
Description : What is plantings of vegetation to slow wind erosion called?
Description : How does erosion by wind take place? -SST 10th
Last Answer : Sometimes in dry areas, dust and silt may be lifted and carried to a great distance by the wind. This is known as Wind erosion.
Description : Name a part of India where Wind is the main agent of erosion. -SST 10th
Last Answer : (i) Thar Desert, western Rajasthan and south Punjab. (ii) In hilly regions such as the Himalayas, hills of North-east India and the Nilgiris.
Description : Wind erosion is common in (a) desert (b) cold areas (c) areas where there is thick vegetation (d) areas of heavy rainfall
Last Answer : Ans: (a)
Description : What is the geographical name given to a deep and narrow Valley consisting of steep sides created by weathering and erosion by rivers, wind, rain and tectonic activity?
Last Answer : Canyon
Description : Detachment and transportation of top soil particles by wind and or by water is known as.
Last Answer : Ans.Soil erosion
Description : The removal of land surface by water, wind, or ice is known as __________ -Other
Last Answer : soil erosion
Description : What process involves the removal of rock partials by wind water ice or gravity?
Last Answer : Need answer
Description : State two methods of controlling the erosion of soil caused by running water. -Geography
Last Answer : (a) Soil erosion caused by running water can be controlled by following methods : (i) By planting trees. (ii) Terrace farming. (b) Alluvial soil of the northern plains are coarse in texture ... Khadar soil is preferred to Bangar because it is more fertile as it is replished every year by floods.
Description : Mention the types of Soil erosion by water. -SST 10th
Last Answer : Soil erosioivby water can be of the following sub-types: (i) Sheet erosion (ii) Rill erosion (iii) Gully erosion (iv) Stream Bank erosion. (v) Sea-shore erosion. (vi) Slip erosion.
Description : The principal cause of soil damage in Punjab and Haryana is (a) Deforestation (b) Soil erosion (c) Excessive cultivation (d) Salinity and water logging
Last Answer : Ans: (d)
Description : Which of the following indicates the types of soil erosion in decreasing order of damage caused In India (a) Ravine erosion .and gullies, alkalinity and salinity weeds and water-logging (b) Alkalinity ... and weeds (c) Water-logging, weeds, salinity and ravine erosion (d) All are equally damaging
Description : Which of the following functions performed by a forest help most in controlling drought? (a) forests act as water sheds (b) forests bring rainfall in monsoon (c) forests lower the temperature of the environment (d) forests prevent soil erosion
Last Answer : Ans: (b)
Description : The main advantage of Rain? Water Harvesting (RWH) is – (1) Recharge ground water (2) Avoid floods (3) Reduce the loss of water (4) Avoid soil erosion
Last Answer : (1) Recharge ground water Explanation: Rainwater harvesting is the simple collection or storing of water through scientific techniques from the areas where the rain falls. It is a technique ... and storing rainwater by constructing structures such as dug wells, percolating pit, check dams.