Learn › Homi Bhabha Class 9 · General Knowledge › Environmental Awareness & Institutions
Environmental Awareness & Institutions — Homi Bhabha Class 9 General Knowledge MCQs with Solutions
Free Homi Bhabha Class 9 General Knowledge Environmental Awareness & Institutions MCQs with step-by-step solutions covering Environmental Awareness Days & Initiatives, Scientific Institutions in India. Practise online on Prepizo — no login needed.
▶ Practise Environmental Awareness & Institutions online (free)
Subtopics
Sample questions with solutions
Q1 — Environmental Awareness Days & Initiatives · easy · theory
World Environment Day, observed every year to encourage people to protect nature, falls on:
A. 16 September
B. 22 April
C. 5 June ✓ Correct
D. 22 March
Solution: World Environment Day is observed globally on 5 June to encourage awareness and action for the environment.
Q2 — Environmental Awareness Days & Initiatives · easy · theory
Earth Day, one of the largest environmental awareness events in the world, is celebrated on:
A. 5 June
B. 2 December
C. 22 April ✓ Correct
D. 3 March
Solution: Earth Day is marked every year on 22 April to promote care for the planet.
Q3 — Environmental Awareness Days & Initiatives · easy · theory
WWF, an international organisation working to protect wildlife and nature, is well known for a logo showing a:
A. Bengal tiger
B. giant panda ✓ Correct
C. blue whale
D. African elephant
Solution: The giant panda has been the logo of WWF (World Wide Fund for Nature) since 1961.
Q4 — Environmental Awareness Days & Initiatives · easy · theory
In the Chipko movement, an early Indian environmental movement, villagers hugged trees to stop them from being:
A. watered
B. cut down ✓ Correct
C. planted
D. painted
Solution: In the Chipko movement, villagers hugged trees to stop contractors from cutting them down.
Q5 — Scientific Institutions in India · easy · theory
ISRO, the organisation responsible for India for satellites and space missions, stands for:
A. International Science Research Office
B. Indian Space Research Organisation ✓ Correct
C. Indian Solar Radiation Observatory
D. Institute of Space and Rocket Operations
Solution: ISRO stands for Indian Space Research Organisation, the national agency for space and satellite missions.
Q6 — Scientific Institutions in India · easy · theory
DRDO, which develops missiles, radars and defence equipment for India, has its full form as:
A. Domestic Robotics and Drone Organisation
B. Department of Rural Development Operations
C. Defence Recruitment and Deployment Office
D. Defence Research and Development Organisation ✓ Correct
Solution: DRDO stands for Defence Research and Development Organisation, which develops defence technology for India.
Q7 — Scientific Institutions in India · easy · theory
The Indian Institute of Science (IISc) at Bengaluru, one of the oldest research institutes in the country, was established with the help of the industrialist:
A. Jamsetji Tata ✓ Correct
B. G. D. Birla
C. Dhirubhai Ambani
D. Azim Premji
Solution: The Indian Institute of Science, Bengaluru, was founded in 1909 with support from the industrialist Jamsetji Tata.
Q8 — Environmental Awareness Days & Initiatives · hard · theory
World Water Day, highlighting the importance of fresh water, is observed on:
A. 16 September
B. 21 March
C. 5 June
D. 22 March ✓ Correct
Solution: World Water Day is observed on 22 March.
Q9 — Environmental Awareness Days & Initiatives · hard · theory
World Ozone Day, to spread awareness about the ozone layer, is observed on:
A. 16 September ✓ Correct
B. 22 April
C. 5 June
D. 22 March
Solution: World Ozone Day is on 16 September, marking the Montreal Protocol.
Q10 — Environmental Awareness Days & Initiatives · hard · theory
The mission launched by the Indian government to clean and protect the river Ganga is:
A. Project Tiger
B. Swachh Bharat
C. Namami Gange ✓ Correct
D. Chipko Movement
Solution: Namami Gange is the flagship programme to clean and conserve the Ganga.
Q11 — Environmental Awareness Days & Initiatives · hard · theory
The famous movement in which villagers hugged trees to prevent them from being cut down was the:
A. Green Revolution
B. Quit India Movement
C. Blue Revolution
D. Chipko Movement ✓ Correct
Solution: In the Chipko Movement, people embraced trees to stop deforestation.
Q12 — Environmental Awareness Days & Initiatives · hard · theory
The global event in which people switch off lights for one hour to save energy is called:
A. Ozone Day
B. Earth Hour ✓ Correct
C. Earth Day
D. World Environment Day
Solution: Earth Hour encourages switching off non-essential lights for one hour to raise climate awareness.
Q13 — Environmental Awareness Days & Initiatives · hard · theory
The index used in India to inform the public about daily air pollution levels is the:
A. Air Quality Index (AQI) ✓ Correct
B. Consumer Price Index
C. Body Mass Index
D. Human Development Index
Solution: The Air Quality Index (AQI) reports how polluted the air is on a given day.
Q14 — Environmental Awareness Days & Initiatives · hard · theory
The International Day of Forests, highlighting the importance of forests, is observed on:
A. 16 September
B. 5 June
C. 22 April
D. 21 March ✓ Correct
Solution: The International Day of Forests is observed on 21 March.
Q15 — Scientific Institutions in India · hard · theory
DRDO, which develops technology for the armed forces, stands for:
A. Defence Rocket Design Office
B. Defence Research and Development Organisation ✓ Correct
C. Delhi Research and Data Organisation
D. Department of Rural Development Office
Solution: DRDO is the Defence Research and Development Organisation.
Q16 — Scientific Institutions in India · hard · theory
CSIR, a large body of research laboratories in India, stands for:
A. Council of Scientific and Industrial Research ✓ Correct
B. Central Society of Indian Researchers
C. Central Space and Information Research
D. Committee for Science in Rural India
Solution: CSIR is the Council of Scientific and Industrial Research.
Q17 — Scientific Institutions in India · hard · theory
ICMR, the apex body for medical research in India, stands for:
A. Indian Council of Medical Research ✓ Correct
B. International Council of Medicine and Research
C. Indian Centre for Modern Radiology
D. Indian Community Medical Register
Solution: ICMR is the Indian Council of Medical Research.
Q18 — Scientific Institutions in India · hard · theory
ICAR, which coordinates agricultural research and education in India, stands for:
A. Indian Council of Agricultural Research ✓ Correct
B. Indian Centre for Applied Robotics
C. Indian Committee for Animal Rights
D. International Council of Agriculture and Rice
Solution: ICAR is the Indian Council of Agricultural Research.
Q19 — Scientific Institutions in India · hard · theory
The Tata Institute of Fundamental Research (TIFR), a centre for advanced science, is located in:
A. Hyderabad
B. Bengaluru
C. Pune
D. Mumbai ✓ Correct
Solution: TIFR is based in Mumbai and is a leading institute for fundamental research.
Q20 — Scientific Institutions in India · hard · theory
India's research stations Maitri and Bharati are located in:
A. Antarctica ✓ Correct
B. the Thar Desert
C. the Indian Ocean floor
D. the Himalayas
Solution: Maitri and Bharati are India's permanent research stations in Antarctica.
Q21 — Scientific Institutions in India · hard · theory
The organisation that prepares official maps of India is the:
A. Survey of India ✓ Correct
B. CSIR
C. ISRO
D. ICMR
Solution: The Survey of India is the national mapping agency.
Q22 — Scientific Institutions in India · hard · theory
AIIMS, a leading medical institution and hospital in India, stands for:
A. Advanced Institute of Medicine and Science
B. All India Institute of Medical Sciences ✓ Correct
C. All India Institute of Modern Surgery
D. Association of Indian Medical and Industrial Sciences
Solution: AIIMS is the All India Institute of Medical Sciences.
Q23 — Environmental Awareness Days & Initiatives · hard · theory
Assertion (A): The Ramsar Convention is an international agreement for the conservation of wetlands. Reason (R): Wetlands act as natural water filters and provide habitat for many birds and aquatic species. Choose the correct option:
A. Both A and R are true, and R correctly explains A ✓ Correct
B. A is true but R is false
C. Both A and R are false
D. Both A and R are true, but R does not explain A
Solution: The Ramsar Convention protects wetlands, and it exists precisely because wetlands filter water and shelter wildlife, so R explains A.
Q24 — Environmental Awareness Days & Initiatives · hard · numerical
A constructed wetland cleans water so that water entering it with 120 mg/L of a pollutant leaves with only 30 mg/L. The fraction of the pollutant removed by the wetland is:
A. 1/2
B. 1/4
C. 1/3
D. 3/4 ✓ Correct
Solution: Removed = 120 - 30 = 90 mg/L; fraction removed = 90/120 = 3/4.
Q25 — Environmental Awareness Days & Initiatives · hard · theory
Which option correctly pairs an environmental awareness day with its main focus?
A. World Wildlife Day (3 March) — protection of wild animals and plants ✓ Correct
B. World Water Day (22 March) — reducing noise pollution
C. Earth Day (22 April) — conserving nuclear fuel
D. World Ozone Day (16 September) — planting mangrove forests
Solution: World Wildlife Day (3 March) is dedicated to celebrating and protecting wild animals and plants.
Q26 — Scientific Institutions in India · hard · theory
Assertion (A): ISRO launches many of its rockets from the Satish Dhawan Space Centre at Sriharikota. Reason (R): Sriharikota lies on the east coast close to the equator, which is favourable for launching rockets. Choose the correct option:
A. Both A and R are true, but R does not explain A
B. Both A and R are false
C. Both A and R are true, and R correctly explains A ✓ Correct
D. A is true but R is false
Solution: Sriharikota is used for launches because it lies on the east coast near the equator, so R correctly explains A.
Q27 — Scientific Institutions in India · hard · numerical
At a DRDO test range, 4 out of every 5 rocket tests are successful. If 45 rockets are tested in a season, the expected number of successful tests is:
A. 9
B. 41
C. 36 ✓ Correct
D. 40
Solution: Successful tests = 4/5 × 45 = 36.
Q28 — Scientific Institutions in India · hard · theory
Which option correctly matches an Indian institution with its main area of work?
A. BARC — study of ocean currents
B. IMD — designing fighter aircraft
C. ZSI — launching communication satellites
D. ICMR — medical and health research ✓ Correct
Solution: ICMR (Indian Council of Medical Research) is the apex body for medical and health research in India.
Q29 — Environmental Awareness Days & Initiatives · medium · theory
World Environment Day is observed every year on:
A. 15 August
B. 1 January
C. 22 April
D. 5 June ✓ Correct
Solution: World Environment Day is celebrated on 5 June to promote environmental awareness.
Q30 — Environmental Awareness Days & Initiatives · medium · theory
Earth Day, celebrated to support environmental protection, falls on:
A. 14 November
B. 2 October
C. 22 April ✓ Correct
D. 5 June
Solution: Earth Day is observed on 22 April every year.