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The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.

WRE: UNIT–I: Surface Water Hydrology: Water Resources in India, Hydrology in water Resources Planning –Precipitation – Types, Measurement of rainfall, Average depth of rainfall over an area, Mean annual rainfall, consistency of rainfall record, Double mass curve; Infiltration – Factors affecting and its determination, Evaporation and Evapo-Transpiration. Runoff – factors affecting runoff, methods of determination of runoff, stream gauging. UNIT-II: Hydrograph analysis: Base flow separation, Unit Hydrograph – Hydrograph of different durations, applications of unit hydrograph, S-hydrograph, Flood Forecasting Techniques. Ground Water Hydrology: Mechanics of interstitial flow, definitions, sub surface distribution of water, types of aquifers, ground water movement, Darcy’s law, Well hydraulics – steady flow into wells in Un-confined and confined aquifers, determination of hydraulic properties of aquifer, pumping test and recuperation test methods for determination of yield of open well. UNIT-III: Reservoir Planning: Types of reservoir investigations for reservoir planning, selection of site for a reservoir, zones of storage in a reservoir, reservoir yield, mass curve and demand curve, determination of reservoir capacity, yield from a reservoir of given capacity, operating schedules, guide curve for reservoir operation, apportionment of total cost of a multi purpose project, reservoir sedimentation, control of reservoir sedimentation, useful life of a reservoir. UNIT-IV: Irrigation: Definition of irrigation, types of irrigation systems – direct and indirect, lift and inundation irrigation system, methods of irrigation – surface and sprinkler methods, drip irrigation, Soil moisture constants, depth of water held by soil in root zone. Water requirements of crops, Duty, Delta, Base period and their relationship, crop seasons, factors affecting duty and methods of improving duty, consumptive use of water, determination of canal capacities for cropping patterns. UNIT-V: Canal Systems: Classification of irrigation canals – canal alignment, design of unlined canals, regime theories – Kennedy’s and lacey’s theories, tractive - force method, design problems – balancing depth of canal.

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