Revision Notes For Class 11 Economics Chapter 9 Environment And Sustainable Development

Environment And Sustainable Development is a chapter that is outlined to help students understand the concept of environment and its significance. The concepts that are covered in this chapter are – environment : definition and its functions, global warming, ozone depletion, state of India’s environment, Chipko or Appiko, pollution control boards, sustainable development, strategies for sustainable development, LPG, gobar gas in rural areas, CNG in urban areas, wind power, solar power, traditional knowledge and practices, biocomposting, biopest control, conclusion.

Class 11 Economics Chapter 9 : Environment And Sustainable Development
Class 11 Economics Chapter 9 : Environment And Sustainable Development
Class 11 Economics Chapter 9 : Environment And Sustainable Development

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Practise This Question

One end of a cylindrical glass rod  ends in a hemispherical surface of radius R = 20 mm.
- Find the image distance of a point object on the axis of the rod, 80 mm to the left of the vertex. The rod is in air.