(SEM I) THEORY EXAMINATION 2023-24 ENVIRONMENT AND ECOLOGY

This question paper evaluates the student’s understanding of environmental science, ecology, pollution, sustainability, human health, waste management, and global environmental challenges.
The paper is divided into three structured sections (A, B, C) designed to test conceptual clarity, analytical skills, environmental awareness, and application-based understanding.

SECTION A — Short Answer Questions (2 × 7 = 14 Marks)

This section contains seven short questions, each aiming to check basic concepts and factual knowledge.

Topics include:

1. Ecology Knowledge

Father of ecology in India

Need for environmental education

2. Basic Ecological Concepts

Difference between producers and decomposers

3. Pollution & Environmental Issues

Whether any energy source is pollution-free

Major causes of water pollution

4. Ozone Depletion

Ozone-depleting substances (ODS) and examples

5. Environmental Legislation

Key provisions of the Environment Protection Act, 1986

This section checks definitions, basic understanding, memory-based environmental facts, and short explanations.

SECTION B — Descriptive Questions (7 × choose any 3 = 21 Marks)

Students must attempt any three questions. These require detailed explanations and conceptual reasoning.

Topics Covered:

1. Environmental Impact Assessment (EIA)

Steps, process flow, significance

2. Energy Flow vs Nutrient Cycling

Difference

Importance of nutrient cycles like nitrogen, carbon, phosphorus

3. Noise Pollution

Effects on human health

Preventive measures

4. Climate Change & Acid Rain

Scientific evidence of climate change

Causes & environmental consequences of acid rain

5. Population Explosion

Causes (mortality decline, fertility rate, migration etc.)

Negative impacts on resources, pollution, and ecosystem balance

This section tests analytical ability and conceptual depth, encouraging real-world environmental understanding.

SECTION C — Long Answer / Analytical Questions (7 marks each)

This section includes four long-answer questions, out of which students must attempt one question in each block.

Question 3 — Ecology & Sustainability (Choose 1)

3(a)

Reason for fewer organisms at top of an ecological pyramid

Limitations of ecological pyramids (inverted pyramids, no decomposers, difficult quantification etc.)

3(b)

Achieving sustainable development (economic, social, environmental balance)

Causes of environmental crisis

This tests understanding of ecological structures and sustainability principles.

Question 4 — Water & Health (Choose 1)

4(a)

Types of water-related diseases

Methods to prevent them (purification, sanitation, hygiene)

4(b)

Health effects of fluoride toxicity (dental & skeletal fluorosis)

Explanation using schematic representation

Focus: Environmental health and public hygiene.

Question 5 — Solid Waste Management (Choose 1)

5(a)

Difference between hazardous & non-hazardous waste

Types of solid waste management techniques

5(b)

Current challenges in solid waste management in India (urbanization, segregation issues, landfills etc.)

This emphasises waste classification and modern waste management issues.

Question 6 — Global Issues (Choose 1)

6(a)

Impact of global warming on climate change

Effects of global warming (sea-level rise, extreme weather, biodiversity loss etc.)

6(b)

Solutions to paddy straw burning

Harmful environmental effects (smog, soil health, greenhouse gases)

Focus: Climate science and environmental hazards.

Question 7 — Social & Institutional Roles (Choose 1)

7(a)

Importance of women’s education in environment & society

7(b)

Activities of NGOs (awareness, conservation, advocacy)

Issues faced by NGOs (funding, politics, transparency etc.)

This highlights social responsibility and environmental participation.

Overall Scope of the Paper

This question paper assesses student capability in:

Ecology fundamentals & environmental science basics
Environmental laws & protection measures
Pollution types, causes & mitigation
Biodiversity, sustainability & climate change
Waste management & public health
Social and institutional roles in environmental protection