Course module

Environmental Science — Bihar STET 2026 Computer Science — General Paper + Paper II

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Lessons
64
Duration
9 hr 3 min
PYQs
0
Practice
93

Syllabus index

Lessons in this module

Environment

Ecology – ecosystem parts, interactions, food chains,Basic

  1. EVS INTRODUCTIONDrm Video
  2. What Does Ecology StudyDrm Video
  3. What Is an EcosystemDrm Video
  4. Biotic Components The Living PartDrm Video
  5. Consumers Organisms That Obtain Food from OthersDrm Video
  6. How Do Decomposers Obtain NutritionDrm Video
  7. Producers, Consumers and Decomposers Work TogetherDrm Video
  8. Food Chain Following One Feeding PathDrm Video
  9. Food Web Several Feeding Pathways Joined TogetherDrm Video
  10. Ecological Niche How an Organism LivesDrm Video
  11. Ecosystems Can Be Classified in Different WaysDrm Video
  12. Stratification Life Arranged in LayersDrm Video
  13. Species Interactions Understanding Their EffectsDrm Video
  14. Commensalism One Benefits, the Other Is UnaffectedDrm Video
  15. Competition Organisms Restrict Each Other’s Access to ResourcesDrm Video
  16. Communities Change Over TimeDrm Video
  17. Wet and Dry Starting Points of SuccessionDrm Video
  18. Fragmentation and Leaching Are DifferentDrm Video
  19. What Controls the Rate of DecompositionDrm Video
  20. Applying Ecosystem Services to a Village PondDrm Video
  21. Competition Can Lead to Exclusion or Resource SharingDrm Video
  22. Common Examination Traps Avoid Absolute ClaimsDrm Video
  23. [Notes] Ecology – ecosystem parts, interactions, food chains, BasicPdf

Energy Flow – trophic levels, pyramids, 10% law,Basic

  1. IntroductionDrm Video
  2. Energy Keeps an Ecosystem FunctioningDrm Video
  3. Trophic Levels Represent Feeding PositionsDrm Video
  4. The 10_ Law Is a Simplified Transfer RuleDrm Video
  5. Reverse Calculations and the Number of TransfersDrm Video
  6. Primary Productivity Measures a RateDrm Video
  7. What Controls Primary ProductivityDrm Video
  8. Secondary Productivity Is Production by HeterotrophsDrm Video
  9. Standing State Refers to a Nutrient PoolDrm Video
  10. Ecological Pyramids Compare Trophic LevelsDrm Video
  11. Biomass Pyramids Compare Mass, Not HeadcountsDrm Video
  12. The Energy Pyramid Is Always UprightDrm Video
  13. Ecological Pyramids Have Important LimitationsDrm Video
  14. The Single-Channel Model Follows One PathwayDrm Video
  15. The Universal Model Follows an Energy BudgetDrm Video
  16. Common Confusions to CorrectDrm Video
  17. [Notes] Energy Flow – trophic levels, pyramids, 10% law,BasicPdf

Sustainable Development – SDGs, Agenda 21,Basic

  1. [Notes] Climate Change & Sustainable Development Goals (SDGs)Pdf

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