(a) Biosphere: Concept of biosphere; biomes, Biogeochemical cycles, Human induced changes in atmosphere including greenhouse effect, ecological succession, biomes and ecotones, community ecology.

Concept of Biosphere
Biomes
Biogeochemical Cycles
Human Induced Changes in Atmosphere (Including Greenhouse Effect)
Ecological Succession
Biomes and Ecotones
Community Ecology
Misc.