🎀 Environment Science

Environmental Science Notes for UPSC and State Exams

✅ Topics and Sub-topics: 300+

✅ Prelims Relevance: ✰✰✰✰✰
✅ Mains Relevance: ✰✰✰✰✰
✅ Average student rating: ✰✰✰✰✰
✅ Difficulty Level: Moderate
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Introduction
Climatic and topographic factors
Soil science in Ecology: Understanding Edaphic Influences

🐢 What is soil? Soil formation and factors of soil formation. 

🐢 Soil profile and soil classification.

🐢 Climate and soil formation (Pedogenic regimes), soil complex: components and properties.

Water Availability and Ecological Adaptations

🐢 Water in Nature and the Soil-Plant-Atmosphere Spectrum.

🐢 Ecological Adaptations in Plants: Hydrophytes, Mesophytes, Xerophytes, and Halophytes.

🐢 Animal Adaptations: Avoiding Predators and Detecting or Confusing Prey.

Organism Interactions: Biotic Factors

🐢 Types of interactions: Positive and negative interactions among organisms. 

Population in ecology: Expansion and control

🐢 Population ecology: characteristics and basic concepts.

🐢 Population growth and control.

Ecological community: characteristics, classification and succession

🐢 Ecological community: characteristics, structure, classification, concepts. 

🐢 Ecological succession: causes and trends, types, processes, climax concept in ecological succession.

Ecosystem: structure and functions

🐢 Ecosystem: types, structure and functions.

🐢 Ecological, geochemical, and atmospheric cycles in ecosystem.

🐢 Pond, ocean, marine, forest, desert, cropland, grassland ecosystems. 

🐢 Productivity of different ecosystems: Primary and secondary production.

Biodiversity and Habitat

🐢Freshwater, terrestrial, desert, marine, and estuarine ecology.

Environmental crisis and sustainable development

🐢What are environmental challenges and what environmental challenges is India and other developing countries facing. 

🐢 Sustainable Development: Principles,  Concept and strategies. Sustainable Development goals.

🐢 Sustainable Development in India and International efforts on sustainable development.

Air pollution : Air Pollution in India

🐢Air Pollution: Definition, causes, environmental pollutants, sources of air pollution and pollutants.

🐢 Harmful effects of Air Pollution.

🐢 Carbon Compounds, Sulphur Compounds, Nitrogen Oxides (NOx), Acid Rain, Ozone(O3), Halogenated Carbons(CFC, HCFC, HFC), Fluorides, Hydrocarbons.

🐢 Aerosols: Black cloud of pollutants over the Indian Ocean, toxicants.

🐢 Air Quality Assessment In India and National Air Quality Monitoring Programme(NAMP) and pollutants measured under NAMP. Air Quality Index(AQI)

🐢 General and specific methods of prevention and control of Air Pollution.

Water pollution: India's Water Quality

🐢Water pollution: Causes, sources and major pollutants.

🐢Water Quality management and Water Quality Assessment in India.

🐢 Water Quality of Major rivers such as Ganges, Yamuna, Brahmaputra, Indus, Krishna etc.

🐢 Methods of control and abatement of water pollution.

Land Pollution

🐢Land Pollution: Causes, types, sources, pollutants, and methods of prevention.

Radiation and chemical pollution

🐢Radiation and chemical pollutants, causes, effects and prevention of chemical and radiation pollution.

Global Warming and Climate Change

🐢Global warming and climate change: Definitions, effects and projected effects, greenhouse effects.

🐢 El-Nino, La-Nina and Southern Oscillation. Ozone layer and Ozone hole, Ozone layer depletion to Ozone business.

Biogeographic regions and vegetation of India

🐢Soils, climate, climatic regions, and biogeographic zones of India.

🐢 Forest vegetation, desert vegetation, grassland vegetation, and chief vegetation types of India.

Biodiversity and Wildlife conservation

🐢Biodiversity: Meaning, measurement, conservation of biodiversity, and threats to biodiversity.

🐢 IUCN Red List Categories and endemism. Biosphere reserves and mangroves.

🐢 Biodiversity of India: Conservation, Protected areas, national  parks and sanctuaries, endangered wildlife projects.

🐢 Biological Diversity Act 2002, National Biodiversity Authority, Farmer`s rights and IPR, International efforts for conservation of biodiversity.

Environmental monitoring and impact assessment

🐢Environmental Monitoring: Biological monitoring Programme, bioindicators and environmental monitoring.

🐢Remote sensing and geographic information system, Environmental Impact Assessment, and environmental management.

Environmental Laws

🐢Why Environmental Laws? Difficulties in making and implementing environment laws.

🐢Indian Environmental Laws and National Environment Policy.

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