1. Definition, scope and importance of environment need for public awareness -
  2. concept of an ecosystem structure and function of an ecosystem producers,
  3. consumers and decomposers energy flow in the ecosystem ecological
  4. succession food chains, food webs and ecological pyramids Introduction, types,
  5. characteristic features, structure and function of the (a) forest ecosystem (b)
  6. grassland ecosystem (c) desert ecosystem (d) aquatic ecosystems (ponds, streams,

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