West Bengal WBCHSE Class 12 Environment Studies Syllabus 2024-25: Download PDF

Chapter

Subtopics

Marks

Hours

Principles of ecology

• Basic concepts and definitions: ecology, landscape, habitat, ecozones, biosphere, ecosystems, ecosystem stability  
• Autecology; synecology; major terrestrial biomes. 
• Types of ecosystems: forest, grassland, lentic, lotic, estuarine, marine, desert, wetlands
• Ecosystem structure and function; abiotic and biotic components of the ecosystem. 
• Ecosystem connections: food chain, food web; detritus pathway of energy flow, The 10 Percent Energy Law by Lindeman, characteristics and decomposition processes; ecological efficiencies; ecological pyramids: pyramids of number, biomass, and energy.  
• Exercise 

20 

40 

Biodiversity

• Concept of Biodiversity
• Value of Biodiversity
• Types of Biodiversity
• Loss of Biodiversity
• Balance in Nature
• India as Mega diversity Nation
• Our Common Plants
• Our Common Animals
• Economic Potential
• Wildlife in Trade
• Strategies of Conservation
• Exercise 

20 

60

Chapter

Subtopics

Marks

Hours

Environmental pollution and pollution control 

• Air Pollution: Source, impact, control measures; Ozone Layer Depletion and its Effects Green House Effects and Global Warming; Ambient Air Quality Standards 
• Water Pollution: Source, impact, control measures; Water Quality Parameters and Standards
• Water Pollution: Source, impact, control measures; Water Quality Parameters and Standards
• Soil Pollution: Source, impact, control measures; Soil quality indicators  
• Noise Pollution: Source, impact, control measures; Noise level parameters 
• Radiation Pollution 
• Carbon trading, Carbon footprint 
• Pollution-Related Diseases  
• Disaster – Natural & Man-Made 
• Strategies for Pollution Abatement and Environmental Quality Improvement  
• Clean Development Mechanism (CDM)
• Regulatory framework for pollution monitoring and control; case study: Ganga Action Plan; Yamuna Action Plan  
• Exercise  

20 

45

Environmental law and management 

• Concept of Environmental Management: Need, Aspect, Approaches (Social, Economic and Moral) 
• Waste Management: Solid, Liquid, Biomedical and Hazardous 
• 4R Management
• Legal Provisions for Environmental Management: The Indian Forest Act 1927; The Wildlife (Protection) Act 1972; The Water (Prevention and Control of Pollution) Act 1974; The Water (Prevention and Control of Pollution) Cess Act 1977; The Forests (Conservation) Act 1980; The Air (Prevention and Control of Pollution) Act 1981; The Environment (Protection) Act 1986; 20 35 Motor Vehicle Act 1988; The Public Liability Insurance Act 1991; Noise Pollution (Regulation and Control) Rules 2000; The Biological Diversity Act 2002  
• Approaches for Environmental Management
• Exercise 

20

35