• Gaia hypothesis
• Ecosystem organization and homeostasis- Succession ,stability and diversity
• Energy Flows and Efficiencies
• Interactions amongst populations: intra- and interspecific interactions
• Biogeochemical cycles: Patterns and basic types of cycles
• Role of microbes in biogeochemical regulation. 
• Disruption of biogeochemical cycles and its consequences

• Conservation of Natural Resources
• Living Resources: Biodiversity and Wildlife
• Water resources and water stress
• Methods of water conservation with special reference to Rajasthan.
• Land Resources
• Environmental impact of exploitation, processing and smelting of minerals.

Energy resources and their exploitation

• Instruments and methods for sampling gaseous pollutants
• Control of gaseous Contaminants
• Water quality criteria; objectives and steps in water quality management
• Waste water treatment
• Soil contamination by different anthropogenic activities
• Thermal pollution
• Radioactive pollution

• Goals, objectives and guiding principles
• Classification of environmental education programmes
• Environmental education in India
• Environment and sustainability

• Definition of EIA and its purpose
• EIA process and methods
• Environmental Management Plan.
• Environmental Auditing , objectives and  process;
• Environmental management system; Auditing of EMS
• Concept of CDM.
• Green marketing
• Eco- labeling