Environment and Ecology Notes for UPSC
Environment and Ecology Notes for UPSC Civil Services Examination की तैयारी करने वाले अभ्यर्थियों के लिए अत्यंत महत्वपूर्ण विषय है। पिछले कुछ वर्षों में UPSC Prelims में 15–20 प्रश्न सीधे या अप्रत्यक्ष रूप से Environment एवं Ecology से पूछे गए हैं। इसलिए इस विषय की मजबूत तैयारी सफलता की कुंजी बन सकती है।
Table of Contents
- Environment and Ecology Notes for UPSC: Basic Concepts
- Ecosystem and Its Components
- Biodiversity and Conservation
- Protected Areas in India
- Climate Change and Global Warming
- International Environmental Conventions
- Environmental Pollution
- Government Initiatives for Environment
- Environment and Ecology Notes for UPSC MCQs
- FAQs on Environment and Ecology Notes for UPSC
Environment and Ecology Notes for UPSC: Basic Concepts
What is Environment?
Environment उन सभी जैविक (Biotic) और अजैविक (Abiotic) कारकों का समूह है जो जीवों के जीवन को प्रभावित करते हैं।
What is Ecology?
Ecology जीवों और उनके पर्यावरण के बीच संबंधों का अध्ययन है।
Ecosystem and Its Components
Components of Ecosystem
1. Biotic Components
- Producers (Green Plants)
- Consumers (Herbivores, Carnivores, Omnivores)
- Decomposers (Bacteria and Fungi)
2. Abiotic Components
- Air
- Water
- Soil
- Temperature
- Minerals
Types of Ecosystems
Natural Ecosystem
- Forest Ecosystem
- Grassland Ecosystem
- Desert Ecosystem
- Aquatic Ecosystem
Artificial Ecosystem
- Agricultural Fields
- Aquariums
Biodiversity and Conservation
Levels of Biodiversity
Genetic Diversity
एक ही प्रजाति के भीतर आनुवंशिक भिन्नता।
Species Diversity
किसी क्षेत्र में विभिन्न प्रजातियों की विविधता।
Ecosystem Diversity
विभिन्न प्रकार के पारिस्थितिक तंत्रों की विविधता।
Biodiversity Hotspots
भारत में निम्नलिखित Biodiversity Hotspots पाए जाते हैं:
- Himalaya
- Indo-Burma
- Western Ghats and Sri Lanka
- Sundaland (Nicobar Islands)
Protected Areas in India
National Parks
- Strictly Protected Areas
- Total National Parks: 107
Wildlife Sanctuaries
- Species Protection Areas
- Human activities regulated.
Biosphere Reserves
- Conservation + Sustainable Development
- Total Biosphere Reserves: 18
Tiger Reserves
- Established under Project Tiger.
- Total Tiger Reserves: 58
Ramsar Sites
- Wetlands of International Importance.
- India has 89 Ramsar Sites.
Climate Change and Global Warming
Greenhouse Gases
- Carbon Dioxide (CO₂)
- Methane (CH₄)
- Nitrous Oxide (N₂O)
- Water Vapour
- Ozone
Causes of Climate Change
- Burning of Fossil Fuels
- Deforestation
- Industrial Activities
- Agricultural Practices
Impacts of Climate Change
- Rising Sea Levels
- Extreme Weather Events
- Biodiversity Loss
- Glacier Melting
International Environmental Conventions
Ramsar Convention (1971)
- Wetland Conservation
- Signed in Ramsar, Iran.
Convention on Biological Diversity (CBD)
- Signed in 1992.
- Objective: Biodiversity Conservation.
UNFCCC (1992)
- Framework Convention on Climate Change.
Paris Agreement (2015)
- Aim: Limit Global Temperature Rise.
CITES (1973)
- Regulation of International Wildlife Trade.
Environmental Pollution
Air Pollution
Major Pollutants:
- PM 2.5
- PM 10
- SO₂
- NOx
- Carbon Monoxide
Water Pollution
Sources:
- Industrial Waste
- Sewage Disposal
- Agricultural Runoff
Soil Pollution
Causes:
- Excessive Fertilizer Use
- Pesticides
- Industrial Waste
Noise Pollution
Sources:
- Vehicles
- Industries
- Loudspeakers
Government Initiatives for Environment
Project Tiger
- Launched in 1973.
Project Elephant
- Launched in 1992.
National Clean Air Programme (NCAP)
- Reduce air pollution levels.
Namami Gange Programme
- Conservation of River Ganga.
Green India Mission
- Increase Forest Cover.
Environment and Ecology Notes for UPSC MCQs
1. Ecology is the study of:
A) Earthquakes
B) Relationships between organisms and environment
C) Weather Forecasting
D) Fossils
Answer: B
2. Which of the following is a greenhouse gas?
A) Oxygen
B) Nitrogen
C) Methane
D) Argon
Answer: C
3. Ramsar Convention is related to:
A) Forests
B) Wetlands
C) Mountains
D) Deserts
Answer: B
4. Which of the following is not a Biodiversity Hotspot in India?
A) Himalaya
B) Indo-Burma
C) Western Ghats
D) Thar Desert
Answer: D
5. Project Tiger was launched in:
A) 1971
B) 1972
C) 1973
D) 1974
Answer: C
6. Paris Agreement is associated with:
A) Trade
B) Climate Change
C) Biodiversity
D) Wetlands
Answer: B
7. Which convention regulates international trade in endangered species?
A) CBD
B) Ramsar Convention
C) CITES
D) UNFCCC
Answer: C
8. The main producers in an ecosystem are:
A) Herbivores
B) Carnivores
C) Green Plants
D) Fungi
Answer: C
9. Project Elephant was launched in:
A) 1982
B) 1987
C) 1992
D) 1997
Answer: C
10. Which pollutant is mainly responsible for acid rain?
A) Oxygen
B) Nitrogen
C) Sulphur Dioxide
D) Helium
Answer: C
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FAQs on Environment and Ecology Notes for UPSC
Q1. Is Environment important for UPSC Prelims?
Yes, around 15–20 questions are asked from Environment and Ecology.
Q2. What are the important Environment topics for UPSC?
Biodiversity, Climate Change, Protected Areas, Pollution and International Conventions.
Q3. How should I prepare Environment for UPSC?
Study NCERT basics, revise current affairs and solve MCQs regularly.
Q4. Which convention is related to wetlands?
Ramsar Convention.
Q5. Which are the biodiversity hotspots found in India?
Himalaya, Indo-Burma, Western Ghats-Sri Lanka and Sundaland.
Conclusion
Environment and Ecology Notes for UPSC एक ऐसा विषय है जो Static और Current Affairs दोनों का मिश्रण है। नियमित revision, concept clarity और MCQ practice के माध्यम से अभ्यर्थी इस विषय में अच्छे अंक प्राप्त कर सकते हैं।
PrepUpdate Internal Linking Ideas
- National Parks in India
- Tiger Reserves in India
- Biosphere Reserves in India
- Ramsar Sites in India
- Government Schemes for Environment