Unique Paper Code 4149
Revised 0 of 4

Environmental Science: Theory into Practice (I)June 2025, Semester II, morning

All UG courses · 11 questions · 9 parts still being checked

Duration: 1 h, 1 h 45 or 2 h 30Maximum Marks: 30, 50 or 70

Reworded by Kunji from the printed paper. The original paper belongs to the University of Delhi. See DU's question bank.

Before you start

  1. This paper. This paper has three parts, and your admission year and mode decide which you sit: Part A only, 30 marks in 1 hour; Parts A and B, 50 marks in 1 hour 45 minutes; Parts A, B and C, 70 marks in 2 hours 30 minutes. The cover of your own paper says which applies to you.
  2. Most asked here. Scope of environmental studies and basic terms (16 papers), Solid waste management (15 papers), Land resources: soil, forests, mining and dams (12 papers). These come back almost every year, so learn them first. The asked N× note beside each part counts the DU papers that set its topic.
  3. Pace. Two minutes a mark: about 20 minutes for each 10-mark question, with nothing spare in 2.5 hours. Move on when the time is up.
  4. Keep score. Every part opens a worked answer checked against the books. Turn the key when you have revised it; the boxes at the top fill in, on this device.
Part A

1.

10 marks
· ~20 min
(a)
History of environmental movementsBeing checked
(5)
(b)
Five blanks filled: shola grasslands, the CPCB, sewage treatment, the stratosphere, the UNCCDBeing checked
(5)

2.

10 marks
· ~20 min
Mangrove versus deciduous forests; regulating versus cultural ecosystem servicesasked 10×Differentiate between each of the following pairs (attempt any two) : 2×5=10 (i) Mangrove forests versus deciduous forests (ii) Regulating ecosystem services versus Cultural ecosystem service (iii) Conventional versus…(10)

3.

10 marks
· ~20 min
Short notes on land use change and its impacts, and on the structure of an ecosystemasked 12×Write short notes on each of the following topics (attempt any two) : 2×5=10 (i) Land use change along with its impacts (ii) The socio-environmental impacts of landfills (iii) The structure of an ecosystem (iv) The…(10)

4.

10 marks
· ~20 min
(a)
Water, soil, thermal and noise pollutionBeing checked
(6)
(b)
Water, soil, thermal and noise pollutionBeing checked
(4)
Part B

5.

10 marks
· ~20 min
Energy resourcesBeing checked
(10)

6.

10 marks
· ~20 min
Solid waste managementBeing checked
(10)

7.

10 marks
· ~20 min
Speech: the importance of ecosystem goods and services for human communitiesasked 10×You are required to represent your college at an inter-college competition, speaking about the topic : "Importance of Ecosystem Goods and Services for Human Communities." Now, prepare a speech that highlights how…(10)

8.

10 marks
· ~20 min
Case: the water crisis in India's metropolitan citiesBeing checked
(10)
Part C

9.

10 marks
· ~20 min
Five definitions: hydrosphere, nuclear energy, smog, abiotic component, fossil fuelsasked 16×Define each of the following (attempt any five of them) : 5×2=10 (i) The hydrosphere (ii) Nuclear energy (iii) Smog (iv) An abiotic component (v) Fossil fuels (vi) The biomedical waste (vii) Ecosystem restoration.(10)

10.

10 marks
· ~20 min
Sustainability and sustainable developmentBeing checked
(10)

11.

10 marks
· ~20 min
Climate change, biodiversity and environment lawBeing checked
(10)

— End of the paper —