Pillai Sruthi P Kumar BSc. Botany (graduate) Graduate (Visharad) in Hindustani Classical Music. Trained Bharatnatyam Classical Dancer. .A passionate speaker. A civil service aspirant. Please do rate, review and recommend if you genuinely liked my video...it will definitely make a difference in my life... Follow me through unacademy app for future notifications...
Objective This course will complete the remaining three chapters (12th ncert) part by part included in the portion of topic ENVIRONMENT' important for GS section of UPSC exam. The main objective is to explain the concepts as simply as possible, to clear the basics, especially focuses on beginners, and tries to generate an interest among viewers by being more creative. . Source 12th ncert
Target audience UPSC aspirants SSC .CDS .Railway etc.
Degradation by improper resource utilization and maintenance. Environmental degradation is the deterioration of the environment through depletion of resources such as - 1. air, water and soil 2. the destruction of ecosystems 3. habitat destruction 4. the extinction of wildlife 5. and pollution. Degradation of natural resources can occur, not just by the action of pollutants but also by improper resource utilization practices.
The development of the fertile top - soil takes centuries. But it is very easy to remove the fertile top - soil due to human activities like 1. over - cultivation 2. unrestricted grazing 3. deforestation and poor irregulation practices 4. resulting in arid patches of land
Desertification - When large barren patches extend and meet over time, a desert is created. It has been recognized a major problem internationally, due to increased urbanization.
Waterlogging and soil salinity: Waterlogging refers to the saturation of soil with water. 1. Soil salinity is the salt content in the soil 2. the process of increasing the salt content is known as salinization.
Why does it occur??? 1. Irrigation without proper drainage of water leads to waterlogging in the soil. 2. This not only affects the crops, but also draws salt to the surface of the soil.
1. The salt then is deposited as a thin crust on the land surface or starts collecting at the roots of the plants. 2. This increased salt content is inimical to the growth of crops and is extremely damaging to agriculture. 3. Waterlogging and soil salinity are some of the problems that have come in thee wake of the green revolution.
Green revolution in India .The Green Revolution in India refers to a period of time when agriculture in India changed to an industrial system due to the adoption of modern methods and technology such as HYV seeds tractors, irrigation facilities, pesticides, fertilizers etc. .Green revolution was started by Norman Borlaug. The key leadership role played by the Indian agricultural scientist M.S. Swaminathan together with many others including GS Kalkat, M.S. Swaminathan earned him the popularly used title Father of Green Revolution of India The green revolution allowed developing countries, like India, to try to overcome poor agricultural productivity. Within India, this started in the early 1960s and led to an increase in food grain production, especially in Punjab, Haryana and Uttar pradesh (especially Western UP) during the early phase.
Pillai Sruthi P Kumar
Pursuing MSc (botany, Cytogenetics), Mumbai University. Youtuber#sruthipillai. Work as a Biofaculty @MtEducare (reputed institute) Mumbai