IGNOU BEVAE-181 - Environmental Studies

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पर्यावरण अध्ययन

A component of IGNOU’s Bachelor of Science (BSCG) program, BEVAE–181, teaches students about our environment and its associated studies. BEVAE–181 covers various environmental studies, including ecosystems, biodiversity, natural resources, land and water resources, forest resources, energy resources, environmental issues, and environmental protection through policies and practice.

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IGNOU BEVAE-181 Code Details

IGNOU BEVAE-181 English Topics Covered

Block 1 - An Introduction to Environment and Environmental Studies

  • Unit 1 - Our Environment
  • Unit 2 - Ecosystems
  • Unit 3 - Major Ecosystems

Block 2 - Natural Resources

  • Unit 1 - Land and Water Resources
  • Unit 2 - Forest Resources
  • Unit 3 - Biodiversity: Values and Services
  • Unit 4 - Energy Resources

Block 3 - Environmental Issues and Concerns

  • Unit 1 - Biodiversity: Threats and Conservation
  • Unit 2 - Environmental Pollution and Hazards
  • Unit 3 - Waste Management
  • Unit 4 - Global Environmental Issues

Block 4 - Protecting Our Environment: Policies and Practices

  • Unit 1 - Environmental Legislation
  • Unit 2 - Human Communities and Environment
  • Unit 3 - Environmental Ethics

IGNOU BEVAE-181 Hindi Topics Covered

Block 1 - पर्यावरण एवं पर्यावरणीय अध्यन का परिचय

  • Unit 1 - हमारा पर्यावरण
  • Unit 2 - पारिस्थितिक तंत्र
  • Unit 3 - प्रमुख पारितंत्र

Block 2 - प्राकृतिक संसाधन

  • Unit 1 - थल एवं जल संसाधन
  • Unit 2 - वन संसाधन
  • Unit 3 - जैव विविधता: मूल्य और सेवाएं
  • Unit 4 - ऊर्जा संसाधन

Block 3 - पर्यावरणीय मुद्दे और चिंताएँ

  • Unit 1 - जैव विविधता: खतरे और सरंक्षण
  • Unit 2 - पर्यावरणीय प्रदूषण और संकट
  • Unit 3 - अपशिष्ट प्रबंधन
  • Unit 4 - वैश्विक पर्यावरणीय मुद्दे

Block 4 - पर्यावरण रक्षा: नीतियां एवं प्रक्रियाएं

  • Unit 1 - पर्यावरण नियमावली
  • Unit 2 - मानव समुदाय और पर्यावरण
  • Unit 3 - पर्यावरणीय नीतिशास्त्र
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IGNOU BEVAE-181 (July 2021 - June 2022) Assignment Questions

PART-A 1. “Sustainable development is an ideal goal towards which all human societies need to be moving” Justify the statement in about 250 words 2. Differentiate between the following terms by giving suitable examples in about 125 words each: (a) Genetic and species diversity (b) Direct and indirect use value of biodiversity 3. Answer the following questions in about 150 words each. (a) What is biodiversity hotspot? Why is India considered as a mega biodiversity hotspot? (b) Describe the life forms of aquatic ecosystem found in different zones with suitable examples and diagrams. (c) Differentiate between the surface and ground water. Describe the factors responsible for degradation of water. (d) Write a short note on nitrogen cycle with the help of a diagram. 4. Why is there a need for participatory forest management? How does Forest Right Act, 2006 helps tribal and forest dwellers? Explain with suitable examples in about 200 words. 5. Critically evaluate non-polluting energy systems in India. Elucidate your answer with suitable examples in about 200 words. PART-B 6. Explain the following terms in about 60 words each: (a) Environmental Justice (b) Agenda 21 (c) Greenhouse Effect (d) Climate change 7. Answer the following questions in about 150 words each. (a) Explain any four impacts of improper waste disposal with suitable examples. (b) What is Ozone Layer Depletion? Describe its effects. (c) Describe the role of Central Pollution Control Board (CPCB) as an institution for monitoring the pollution levels of environment. (d) How do collective actions help in addressing environmental issues and concerns? Explain. 8. “Protected areas play a very important role in in-situ conservation of species.” Elucidate the statement with respect to present day context in about 200 words. 9. ‘Polluted water is a threat to our health and survival of life forms” Explain it with respect to different agents of water pollutants in about 200 words. 10. How do natural disasters as floods and cyclones adversely affect the lives and properties? Explain your answer with suitable examples in about 250 words.

IGNOU BEVAE-181 (July 2020 - January 2021) Assignment Questions

  1. (a) Explain the importance of environment in day to day life by citing suitable examples in about 120 words. (b) “Sustainable development is a goal toward which all human societies need to be moving.” Elaborate the statement in about 120 words.
  2. Differentiate between the following terms by giving suitable examples in about 120 words: (a) Primary succession and secondary succession (b) Direct and indirect use value of biodiversity
  3. Answer the following questions in about 150 words. (a) What is biodiversity hotspot? Why is India considered as a mega biodiversity hotspot? (b) Distinguish between Biota of the Pelagic and Benthic zones of the Oceans with examples. (c) Differentiate between the surface and ground water. Describe the factors responsible for degradation of water. (d) Write a short note on global carbon cycle with the help of diagram.
  4. How does forest support ecological system and moderate global climate? Explain with suitable examples in about 250 words.
  5. “India has tremendous potential in non-conventional sources of energy.” Elucidate the statement with suitable examples and arguments in about 250 words.
  6. Explain the following terms in about 50 words: (a) Ecofeminism (b) Agenda 21 (c) Global Warming (d) Hazardous Wastes
  7. Answer the following questions in about 150 words. (a) How does Landfilling act as an important method of waste disposal? Explain. (b) What is Acid rain? Describe its effect. (c) Describe issues emerges in enforcement of national environment legislations. (d) What is environmental ethics? Why do we need a set of ethics for the environment? Explain.
  8. “Habitat destruction is recognised as most significant threat to global biodiversity?” Elucidate the statement in present context with suitable examples in about 250 words.
  9. Differentiate between the primary and secondary pollutants. Explain how these pollutants are harmful for humans and environment in about 250 words.
  10. Critically analyse a case of people’s movement in India against environmental degradation in about 300 words.
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IGNOU BEVAE-181 (July 2021 - June 2022) Assignment Questions

IGNOU BEVAE-181 (July 2020 - January 2021) Assignment Questions

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