Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
Which of the following statements about soil pollution is INCORRECT?
The area treatment method to prevent soil erosion involves treating the natural water courses.
Storing surplus rainwater by constructing bunds, ponds, etc. belongs to the category of area treatment method.
In temperate regions, DDT has a half-life of 10тАУ15 years.
Irrigation water can cause salinisation of soil.
The area treatment method to prevent soil erosion involves treating the natural water courses.
Area treatment methods focus on land management to reduce soil erosion, whereas drainage line treatment involves managing natural water courses. Option A is incorrect because treating water courses is specifically classified as drainage line treatment, not area treatment.
Area treatment methods focus on land management to reduce soil erosion, whereas drainage line treatment involves managing natural water courses. Option A is incorrect because treating water courses is specifically classified as drainage line treatment, not area treatment.
E=KтЛЕLтЛЕSтЛЕCтЛЕP
Universal┬аSoil┬аLoss┬аEquation┬а(USLE)┬аparameters┬аdefine┬аerosion┬аintensity
Area treatment is designed to minimize rain splash erosion and promote water infiltration directly at the site of rainfall. Methods like contour bunding, bench terracing, and afforestation reduce the velocity of runoff across the land surface. Drainage line treatment, conversely, focuses on controlling concentrated flow in gullies or streams to prevent channel erosion and sedimentation.
Area treatment covers land surface management like bunds, vegetative barriers, and reforestation.
Drainage line treatment covers check dams, gully plugging, and silt detention structures in streams.
DDT persistence in temperate soils ranges from 10 to 15 years due to low microbial degradation rates.
Salinisation occurs due to excessive irrigation in arid zones leading to accumulation of soluble salts in the root zone.
Improved moisture conservation
Reduced sedimentation in downstream water bodies
High initial investment costs
Requires long-term land use commitment
Watershed management
Agricultural soil conservation projects
DDT (Dichlorodiphenyltrichloroethane) is a persistent organic pollutant with a very long half-life in soils.
Irrigation salinisation is primarily caused by poor drainage and evaporation of water containing dissolved salts.
Option B is a correct example of area treatment as it focuses on storage at the surface level.
A is correct тАФ The area treatment method focuses on land surface management, while treating natural water courses is defined as drainage line treatment.
Remember the distinction: Area treatment = Land/Field scale; Drainage line treatment = Stream/Gully scale.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download тАв 100K+ Aspirants