ISC 2026 Environmental Science Question Paper for Class 12

About this paper

This is the ISC Class 12 Environmental Science paper (code 877) set by CISCE for the 2026 board examination. It carries 70 marks, runs for three hours plus fifteen minutes of reading time, and has twelve compulsory questions in three sections. Section A has fourteen one-mark items, including multiple-choice, assertion–reason, analogies, expanded forms and define-the-term questions. Section B has seven four-mark short answers and Section C four seven-mark long answers, with internal choices in two Section B questions and one Section C question. Many questions are scenario-based, such as a battery maker taking back old batteries, a chef migrating from Assam to Goa, the Soil Health Card scheme, a society switching to solar panels and adulterated festive sweets. This copy has the questions only.

Exam

ISC Class 12

Subject

Environmental Science

Year

2026

Paper code

877

Maximum marks

70

Time allowed

3 hours + 15 min reading

Questions

12

Pages

7

Answers included

No, questions only

Paper pattern

• Section A

  14 marks

  Question 1: 14 one-mark subparts – multiple-choice, assertion–reason, analogies, naming, expanded forms and terms

• Section B

  28 marks

  Questions 2–8, short answers of four marks each; internal choice in two questions

• Section C

  28 marks

  Questions 9–12, long answers of seven marks each; internal choice in one question

Topics covered

• Extended producer responsibility and externalities
• Biodiversity conservation
• Traditional and modern irrigation
• Air quality monitoring and pollution control boards
• Migration and globalisation
• Soil health indicators
• Food security and women's empowerment
• Environmental movements and thinkers
• Sustainable agriculture and ecological footprint
• Cost benefit analysis and foreign aid
• Agriculture in colonial India
• Food adulteration

Questions from this paper

1. State any four functions of the State Pollution Control Board (SPCB).
2. What is globalisation? Discuss any three demerits of globalisation.
3. How did the radical approach of the Earth First! organisation spread the idea of conservation across the world?
4. Contrast macro irrigation with micro irrigation on the basis of water use, cost and suitability.
5. Briefly explain any three advantages of a dry toilet in a semi-arid region.
6. "From fields of gold to fields of sorrow." In the light of this phrase, analyse the status of Indian agriculture during colonial rule.