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Free Practice Questions for Odisha BSE HSC Env & Pop Ed

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Key Facts: Odisha BSE HSC Env & Pop Ed Exam

SEP

Official BSE Odisha subject code/name for Environment & Population Education (Class X)

BSE Odisha Class X subject-wise syllabus

100 marks

Full marks for Environment and Population Education annual paper (2h 30m)

BSE Odisha Pattern of Question 2026

50 + 50

MCQ marks + subjective marks on the official SEP paper

BSE Odisha Pattern of Question 2026

25 + 25

Environment MCQs + Population MCQs (1 mark each) on the official paper

BSE Odisha Pattern of Question 2026

2022 text

Prescribed book Paribesh 'O' Jana Sankhya Adhyayan (2022 Edition)

BSE Odisha Class X syllabus

HSC fee

SEP examination cost included in overall BSE Odisha HSC form fill-up fees

BSE Odisha HSC fee practice (session circulars)

BSE Odisha HSC Environment and Population Education (SEP) is a Class 10 board subject (textbook Paribesh 'O' Jana Sankhya Adhyayan 2022) with a 100-mark mixed paper: 50 MCQ + 50 subjective in 2h 30m. Official name SEP; not a language paper. Fee included in HSC form fill-up. This free bank is an English MCQ study adaptation for pollution, health, gender, HIV, and drug-abuse topics.

Sample Odisha BSE HSC Env & Pop Ed Practice Questions

Try these sample questions to review concepts for the Odisha BSE HSC Env & Pop Ed exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which gas is the main component of clean, dry air near Earth's surface?
A.Nitrogen (about 78%)
B.Only pure carbon dioxide
C.Only pure chlorine gas
D.Only pure sulfur dioxide
Explanation: Dry air is about 78% nitrogen and 21% oxygen, with small amounts of argon, CO2, and other gases. Pollution adds harmful substances above natural levels.
2Air pollution is best defined as:
A.Only the smell of flowers after rain
B.Only cold weather with no chemicals
C.Only empty air with zero gases
D.The presence of substances in air in concentrations that harm humans, living organisms, materials, or the environment
Explanation: Air pollution means unwanted solid, liquid, or gaseous substances that degrade air quality and cause harm when present beyond safe levels.
3Which of the following is a major primary air pollutant from incomplete combustion of fossil fuels?
A.Pure nitrogen gas only
B.Only water vapour with no carbon
C.Carbon monoxide (CO)
D.Pure oxygen gas only
Explanation: Incomplete combustion produces CO, a toxic gas that reduces the blood's oxygen-carrying capacity by binding to haemoglobin.
4Sulphur dioxide (SO2) in air is mainly associated with:
A.Only melting of pure ice far from cities
B.Burning of sulphur-containing coal and oil and certain industrial processes
C.Only pure rainwater with no industries
D.Only photosynthesis in green plants
Explanation: SO2 is released when sulphur in fuels is burned; it irritates airways and contributes to acid rain when oxidized and combined with water.
5Particulate matter (PM) such as PM2.5 is dangerous mainly because:
A.Fine particles can enter deep into the lungs and even the bloodstream
B.Particles always make air healthier to breathe
C.Particles only exist on the Moon
D.Particles never affect human health
Explanation: Fine particulates penetrate deep into the respiratory system and are linked to asthma, heart disease, and other health problems.
6Acid rain is formed mainly when:
A.Only pure sugar dissolves in rain
B.Only pure oxygen forms soft rain
C.Only dust settles without any chemical change
D.Oxides of sulphur and nitrogen react with water vapour to form acidic precipitation
Explanation: SO2 and NOx oxidize and dissolve in atmospheric moisture to form sulphuric and nitric acids that fall as acid rain or dry deposition.
7Which practice best reduces outdoor air pollution from vehicles?
A.Idling engines for long periods without need
B.Removing all catalytic converters permanently
C.Using cleaner fuels, efficient engines, public transport, and vehicle emission checks
D.Burning more tyres for heat
Explanation: Reducing fuel use, improving combustion, and controlling tailpipe emissions cut CO, NOx, hydrocarbons, and particulates from transport.
8The ozone layer high in the stratosphere is beneficial because it:
A.Makes acid rain fall continuously
B.Absorbs much of the Sun's harmful ultraviolet (UV) radiation
C.Completely blocks all oxygen from reaching Earth
D.Produces only pure carbon monoxide for breathing
Explanation: Stratospheric ozone shields life from excessive UV-B radiation that can cause skin cancer, eye damage, and harm to ecosystems.
9Ground-level (tropospheric) ozone is mainly a secondary pollutant formed when:
A.Nitrogen oxides and volatile organic compounds react in sunlight
B.Only pure nitrogen freezes at night with no sunlight
C.Only pure argon mixes with helium
D.Only groundwater evaporates without chemistry
Explanation: Photochemical reactions among NOx and VOCs produce ground-level ozone, a major component of smog that irritates lungs.
10Which indoor source can significantly raise carbon monoxide risk if poorly ventilated?
A.Only open windows with clean outdoor air
B.Only electric LED bulbs with no combustion
C.Only cold water storage tanks
D.Burning charcoal, wood, or kerosene in closed rooms
Explanation: Incomplete combustion indoors without ventilation can build lethal CO levels; never burn fuel in sealed rooms.

About the Odisha BSE HSC Env & Pop Ed Exam

Environment and Population Education (SEP) is a Class 10 BSE Odisha HSC subject taught from Paribesh 'O' Jana Sankhya Adhyayan (2022). Environment Education covers air, water, waste, and noise pollution, land degradation, and environment management (including conservation and sustainable practices). Population Education covers adolescent personal and reproductive health, gender equality and equity for women's empowerment, HIV/AIDS, and drug abuse. The official annual paper is 100 marks in 2 hours 30 minutes with 50 marks MCQs and 50 marks subjective answers (Pattern of Question 2026). Fee is part of overall HSC examination charges. This free OpenExamPrep bank provides 100 English four-option MCQs for knowledge practice only — pair it with the official textbook and school subjective writing practice.

Exam sponsor: Board of Secondary Education, Odisha (BSE Odisha), Cuttack. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Official paper (Pattern of Question 2026): Time 2 hours 30 minutes; Full marks 100. Environment Education — Objective: 25 MCQs × 1 mark; Subjective: Question 1 (two questions with alternatives, 2×5=10) and Question 2 (five out of eight, 5×3=15). Population Education — Objective: 25 MCQs × 1 mark; Subjective: Question 3 (two with alternatives, 2×5=10) and Question 4 (five out of eight, 5×3=15). Class X syllabus units (BSE subject-wise syllabus): Environment Education — Air Pollution, Water Pollution, Waste Pollution, Noise Pollution, Land degradation, Environment Management; Population Education — Personal and Reproductive Health by Adolescence, Gender Equality & Equity for Empowerment of Women, HIV/AIDS, Drug Abuse. Prescribed book: Paribesh 'O' Jana Sankhya Adhyayan (2022). Official code SEP. Despite the practice URL/exam-id fragment 'second-language', this is NOT a language paper. This bank is an English-language MCQ study adaptation only.

Time Limit

2 hours 30 minutes (official paper)

Passing Score

~30% per subject + ~33% aggregate (confirm circular)

Exam / Certification Fees

Included in BSE Odisha HSC form fill-up / examination fees as notified for the session (no separate SEP-only public fee).

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

~12%

Air Pollution

Air composition, major pollutants, acid rain, smog ozone, indoor CO, AQI, and controls.

~12%

Water Pollution

Sources, pathogens, eutrophication, BOD/COD ideas, runoff, thermal pollution, and treatment basics.

~10%

Waste Pollution

3Rs, segregation, composting, plastics, e-waste, hazardous waste, dumps vs landfills.

~8%

Noise Pollution

Sources, health effects, dB idea, silent zones, and mitigation.

~8%

Land Degradation

Erosion, desertification, salinisation, waterlogging, mining, afforestation.

~10%

Environment Management

Sustainable development, conservation, forests, climate, rainwater harvesting, EIA.

~12%

Personal & Reproductive Health

Adolescence, hygiene, diet, menstrual health, stress, consent, early pregnancy risks.

~10%

Gender Equality & Equity

Equality vs equity, education, sex ratio, stereotypes, violence, empowerment.

~10%

HIV/AIDS

Transmission, myths, AIDS, ART, stigma, testing, prevention.

~8%

Drug Abuse

Tobacco, alcohol, addiction, peer pressure, needle risks, community response.

Preparing for the Odisha BSE HSC Env & Pop Ed Exam

What You Need to Know

  • Passing score: ~30% per subject + ~33% aggregate (confirm circular)
  • Assessment: Official paper (Pattern of Question 2026): Time 2 hours 30 minutes; Full marks 100. Environment Education — Objective: 25 MCQs × 1 mark; Subjective: Question 1 (two questions with alternatives, 2×5=10) and Question 2 (five out of eight, 5×3=15). Population Education — Objective: 25 MCQs × 1 mark; Subjective: Question 3 (two with alternatives, 2×5=10) and Question 4 (five out of eight, 5×3=15). Class X syllabus units (BSE subject-wise syllabus): Environment Education — Air Pollution, Water Pollution, Waste Pollution, Noise Pollution, Land degradation, Environment Management; Population Education — Personal and Reproductive Health by Adolescence, Gender Equality & Equity for Empowerment of Women, HIV/AIDS, Drug Abuse. Prescribed book: Paribesh 'O' Jana Sankhya Adhyayan (2022). Official code SEP. Despite the practice URL/exam-id fragment 'second-language', this is NOT a language paper. This bank is an English-language MCQ study adaptation only.
  • Time limit: 2 hours 30 minutes (official paper)
  • Exam / certification fees: Included in BSE Odisha HSC form fill-up / examination fees as notified for the session (no separate SEP-only public fee). Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Odisha BSE HSC Env & Pop Ed: Suggested Study Strategy

1Map every chapter in Paribesh 'O' Jana Sankhya Adhyayan (2022) to Environment vs Population sections before mixing practice sets.
2For pollution units, always link source → pollutant → effect → control (e.g., SO2 → acid rain → scrubbers/clean fuel).
3Memorise what does and does not transmit HIV; myth-busting MCQs are common and reduce stigma.
4Practise 25-minute timed sets of 25 MCQs to mirror half of the official objective load, then write 5-mark subjective answers by hand.
5Use school internal assessment (IA) deadlines as mini-deadlines for chapter completion rather than cramming only before the annual paper.
6Pair this English MCQ bank with Odia textbook terminology if you will write the board paper in Odia medium.

Frequently Asked Questions

What is Environment and Population Education (SEP) in Odisha BSE HSC?

SEP is the Class 10 BSE Odisha subject Environment and Population Education, taught from Paribesh 'O' Jana Sankhya Adhyayan (2022). It covers pollution and environment management plus adolescent health, gender equality, HIV/AIDS, and drug abuse. It is not a language paper, even when pattern booklets or IDs mention a second-language slot.

What is the official exam pattern for SEP?

Per BSE Odisha Pattern of Question for Annual HSC 2026: 2 hours 30 minutes, 100 marks. Environment Education: 25 MCQs + subjective (10+15 marks). Population Education: 25 MCQs + subjective (10+15 marks). Total 50 MCQ + 50 subjective marks.

Is there a separate exam fee for SEP?

No separate public subject fee is published for SEP alone. Examination charges are paid as part of BSE Odisha HSC form fill-up / school examination fees for the session. Check the current circular on bseodisha.ac.in.

Which textbook should I study?

BSE Odisha's Class X subject-wise syllabus lists Paribesh 'O' Jana Sankhya Adhyayan (2022 Edition) as the prescribed textbook for Environment & Population Education (SEP).

Is this practice bank the official board paper?

No. These 100 items are an independent English-language MCQ study adaptation for concept practice. The official paper also includes 50 marks of subjective questions and may be offered in Odia/English media through schools.

What topics appear in Class X SEP?

Environment Education: Air Pollution, Water Pollution, Waste Pollution, Noise Pollution, Land degradation, Environment Management. Population Education: Personal and Reproductive Health by Adolescence, Gender Equality & Equity for Empowerment of Women, HIV/AIDS, Drug Abuse.

What is the passing score for Odisha HSC subjects?

Secondary summaries of BSE Odisha HSC commonly cite about 30% in each subject and about 33% aggregate. Always confirm the exact pass and grading rules in the year's official HSC notification.

How should I use this bank for board prep?

Drill MCQs for definitions and cause–effect chains, then write short and long answers from the textbook for the subjective 50 marks. Review wrong explanations and revisit pollution control measures, HIV myths, and gender equity concepts that often appear as one-mark items.