(SEM IV) THEORY EXAMINATION 2018-19 ENVIRONMENT & ECOLOGY

ENVIRONMENT & ECOLOGY – B.Tech (Semester IV), RAS-402

This is a 3-hour, 70-mark theory examination designed to test a student’s understanding of environmental science, ecological balance, pollution, natural cycles, biodiversity, environmental laws, and sustainable development. The structure includes conceptual, descriptive, and analytical questions.
 

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

This section consists of 7 brief questions that check basic definitions and fundamental environmental concepts.

Topics include:

Biomagnification                Greenhouse importance

BAP & its sources               Sea as a carbon sink

BOD                                    Flood causes

Biotic & abiotic components

These questions test quick conceptual clarity.
 

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

Students must attempt any 3 of 5 questions.
This section requires detailed explanations, diagrams, and environmental processes.

Key topics:

Ecosystem restoration & in-situ conservation                  Nitrogen cycle + nitrification/denitrification

Meaning & components of environment                         Biodiversity: types & importance

Environmental education & bio-indicators

This section evaluates understanding of ecological systems and environmental science principles.
 

SECTION C — Long Answer Questions (7 marks each)

This section consists of five questions, each with two choices (a or b).
It requires in-depth answers, diagrams, and logical explanations.

Main topics include:

Q3 – Renewable Energy & Soil Issues

Biomass and biogas energy + types of biogas plants

Soil fertility issues: water logging & salinity

Q4 – Environmental Studies Concepts

Multidisciplinary nature & importance

Food chain & food web + types with examples

Q5 – Pollution & Laws

Air pollution: sources, effects, control measures

Water Pollution Act (1974) salient features

Q6 – Global Environmental Issues

Ozone layer depletion: causes & effects

Impact of urbanization & industrialization + remedies

Q7 – Environmental Management Tools

Role of NGOs in pollution control

Solid waste management: meaning & functional elements

This section tests application-oriented knowledge, analytical skills, and environmental problem-solving abilities.
 

OVERALL PURPOSE OF THE EXAM

The question paper aims to evaluate a student’s ability to:

Understand ecological processes & natural cycles

Identify sources, effects, and control of pollution

Explain biodiversity and conservation methods

Analyze global environmental issues

Apply environmental laws and management techniques

Understand sustainable development & environmental awareness

It offers a balanced mix of concepts, diagrams, laws, processes, and real-world environmental issues, ensuring well-rounded knowledge.