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Environmental Education by Suresh Pachauri

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3

Eco-systems

After reading this chapter, you will be conversant with:

  • Concept of an eco-system
  • Structure and function of an eco-system
  • Producers, consumers and decomposers
  • Energy flow in the eco-system
  • Ecological succession
  • Food chains and ecological pyramids

Introduction, types, characteristic features, structure and function of the following eco-system:

  • Forest
  • Grassland
  • Desert
  • Aquatic (ponds, streams, lakes, rivers, oceans, estuaries)
ECOLOGY AND ECO-SYSTEM

Ecology

No life exists in a vacuum. Every living organism is surrounded by materials and forces which constitutes its environment and from which it must derive its needs. Thus, for its survival, a plant, an animal or a microbe cannot remain completely aloof in a shell. Instead, it requires ...

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