Geography - MOST IMPORTANT IB ACIO Previous Year Questions
Practice real questions from previous year exams of IB ACIO.
📘 Physiography of India📚 Peninsular Plateau and its Divisions
Q1
Consider the following statements regarding the geological evolution of the Peninsular Plateau:
Statement 1 : The fault valleys of the Narmada and Tapti rivers are a result of block faulting that occurred during the Carboniferous period.
Statement 2: The Deccan Trap was formed due to massive volcanic activity during the Quaternary period, leading to the deposition of thick lava sheets.
Which of the above statements is/are correct?
🎯 IB ACIO Grade-II 2025
📘 Physiography of India📚 The Islands- Bay of Bengal Islands
Q2
Consider the following statements regarding the Andaman and Nicobar Islands:
1. The South Andamans are largely flat lowlands.
2. The Nicobar Islands lie to the south of the Andaman group and include major islands like Swaraj Island and Subhash Island.
3. The North and Middle Andamans are highly dissected, forested and include elevations below 750 metres.
4. The Barren and Narcondam islands are of volcanic origin and are located south of Port Blair.
Which of the above statements are correct?
🎯 IB ACIO Grade-II 2025
📘 Drainage System- Overview📚 The Peninsular Drainage System
Q3
Consider the following statements regarding the evolution and characteristics of the Peninsular drainage system in India:
1. The lack of meandering in Peninsular rivers is primarily due to the absence of soft alluvial plains and the relatively older geological age of the terrain.
2. The main reason why rivers like Narmada and Tapi do not form deltas is the subsidence of the eastern part of the Peninsula during the Tertiary period.
3. Peninsular rivers mostly flow towards the Bay of Bengal due to the tilting of the Peninsula in a north-eastern direction.
4. The tributaries of the Ganga like Chambal and Ken originate in the Peninsular region but flow northward due to post-Himalayan tectonic uplift.
Which of the above statements are correct?
🎯 IB ACIO Grade-II 2025
📘 The Indus river system📚 Jhelum River
Q4
Consider the following statements regarding the Himalayan Drainage System:
1. The Jhelum river originates near Lake Rakshastal, flows west for a while, then southwest to join the Indus River in Pakistan.
2. The Ganga river is formed by the Bhagirathi and Alaknanda confluence, flows through India and Bangladesh to the Bay of Bengal.
3. The Brahmaputra river starts as the Yarlung Tsangpo in Tibet, flows east, U-turns into Arunachal Pradesh, then Assam and Bangladesh to join the Ganga.
4. Upper Himalayan rivers' erosion mainly forms floodplains and meanders in high altitudes.
Which of the above statements are correct?
🎯 IB ACIO Grade-II 2025
📘 Natural Vegetation of India📚 Tropical Evergreen Forest and its types
Q5
Which forest type in India is being described based on the following characteristics?
- Found in regions that receive about 100 cm of rainfall annually from October to December, with mean temperature around 28°C and relative humidity of 74%
- Forests consist of low-height trees with canopies ranging from 9 to 12 metres
- Common tree species include Toddy Palm, Kokko, Jamun, Ritha, Khirni, Tamarind, and Neem
🎯 IB ACIO Grade-II 2025
📘 Physiography of India📚 Northern Plains (Indo-Ganga-Brahmaputra Plain) and its Divisions
Q6
Consider the following statements regarding the Great Northern Plains of India:
1. The Northern Plains support more than half of India’s total population, despite occupying only about one-fourth of the country’s land area.
2. These plains are agriculturally rich due to deep alluvial soils, perennial rivers, and a favourable climate.
3. The region is known as the “Wheat Bowl of the Country” because of the predominance of wheat cultivation across all its sub-regions.
4. The Northern Plains are characterized by extremely flat terrain with slight eastward slope and minimal elevation difference across the region.
Which of the above statements is/are correct?
🎯 IB ACIO Grade-II 2025
📘 Minerals and Energy Resources of India (Distribution and Production)📚 Bauxite
Q7
According to 'Indian Minerals Yearbook 2021', which of the following statements regarding Bauxite resources and production in India during 2020–21 are correct?
1. Odisha, contributing about 76% to national output, is the largest producer of bauxite, with key mining districts such as Lohardagga and Amarkantak.
2. Bauxite is primarily associated with laterite rocks and is generally found in regions with tertiary formations.
3. Maharashtra, with over 10% share in national production, is the second-largest producer of bauxite, ahead of Chhattisgarh and Gujarat.
4. Bauxite is used not only in the production of aluminium and its alloys but also in refractories, paints and chemical industries.
🎯 IB ACIO Grade-II 2025
📘 Physiography of India📚 The Indian Desert
Q8
The Thar Desert in India spreads over how many states?
🎯 IB ACIO Grade-II 2025
📘 Human Races📚 Tribes in India
Q9
Consider the following statements regarding the distribution of Scheduled Tribes (STs) in India as per Census 2011:
1. Lakshadweep has a minimal share in India’s ST population but the highest internal ST proportion among all states and UTs.
2. Over half of India’s ST population is concentrated in Madhya Pradesh, Maharashtra, Odisha, Rajasthan, Gujarat, Jharkhand, Chhattisgarh, Andhra Pradesh and West Bengal.
3. The ST population recorded a lower growth rate than the total population during 2001–2011.
4. The sex ratio among Scheduled Tribes is more favourable than the national average.
Which of the above statements is/are correct?
🎯 IB ACIO Grade-II 2025
📘 Physiography of India📚 The Islands- Arabian Sea Islands
Q10
Match the following offshore islands of the Arabian Sea with the Indian state to which they are geographically the closest.
Islands: a. Arnala, b. Piram, c. Hog Island, d. Divar
Closest State: 1. Goa, 2. Karnataka, 3. Maharashtra, 4. Gujarat
🎯 IB ACIO Grade-II 2025
📘 National Parks, Sanctuaries, and Reserves of India📚 National Park
Q11
Match the following Wildlife Sites with their corresponding States.
List-I (Wildlife Sites): A. Clouded Leopard National Park, B. Mayurjharna Elephant Reserve, C. Lemru Elephant Reserve, D. Chandra Shekhar Azad Bird Sanctuary
List-II (States): 1. Tripura, 2. West Bengal, 3. Chhattisgarh, 4. Uttar Pradesh
🎯 IB ACIO Grade-II 2025
📘 Physiography of India📚 Coastal Plains
Q12
Which of the following statements is/are correct regarding the West Coastal Plain?
1. It gradually widens from Kachchh to Kanyakumari.
2. The Gujarat plain is formed by rivers like Narmada, Tapi, Mahi, and Sabarmati.
3. The average width of the West Coastal Plain is lesser than that of the East Coastal Plain.
🎯 IB ACIO Grade-II 2025
📘 National Parks, Sanctuaries, and Reserves of India📚 National Park
Q13
Which of the following statements regarding National Parks and Biodiversity-related conservation in India are correct?
1. A State Government may declare an area as a National Park, but boundary changes need the National Board for Wildlife’s recommendation.
2. According to IUCN (1969), National Parks should not allow any form of human visitation.
3. The Central Government may notify Biodiversity Heritage Sites in consultation with local bodies.
4. In Biosphere Reserves, tourism is prohibited in the core zone but allowed in buffer and transition zones.
🎯 IB ACIO Grade-II 2025
📘 Population and Demographics of India📚 Population Composition: Gender (Sex Ratio), Age Structure, and Health Indicators
Q14
Consider the following statements regarding the Age Structure of India as per Census 2011 and identify which of them is/are correct:
1. The age-sex pyramid of India shows a tapering base and a bulge in the middle age groups, indicating a shift towards a lower birth rate and a growing working-age population.
2. The dependency ratio in India as per the 2011 census suggests that a larger proportion of the population falls in the working-age group compared to the dependent population.
3. The proportion of females surpasses males consistently across all age groups after 45 years of age.
4. India’s elderly (60+) population in 2011 was still below the global average, indicating limited ageing burden as compared to developed nations.
🎯 IB ACIO Grade-II 2025
📘 Natural Vegetation of India📚 Himalayan Forest and its types
Q15
Which of the following statements regarding natural vegetation regions of India are correct?
1. The Eastern Himalayan Region includes vegetation ranging from tropical to alpine types and receives more than 200 cm of annual rainfall.
2. The North-Western Himalayan Region has tropical evergreen vegetation in sub-montane areas and dense deciduous forests at alpine heights.
3. The Assam Region contains rich bamboo and palm vegetation and has Nilgiri-type grasslands at higher altitudes.
4. The Gangetic Plain and Aravali region show vegetation ranging from semi-arid shrubs to moist deciduous forests, with species like Neem, Mahuwa, Jamun, and Acacia.
🎯 IB ACIO Grade-II 2025
📘 Physiography of India📚 Coastal Plains
Q16
Which of the following is a correct comparison between the East and West Coastal Plains of India?
🎯 IB ACIO Grade-II 2025
📘 Climate of India📚 Tropical Cyclones
Q17
Which of the following statements regarding Tropical Cyclones and Western Disturbances in India are correct?
1. Tropical cyclones in India generally develop over the Arabian Sea and Bay of Bengal, especially during the southwest monsoon season.
2. Some tropical cyclones also occur during the retreating monsoon or winter months.
3. Western Disturbances originate over the Bay of Bengal and bring heavy rainfall to southern India.
4. Western Disturbances are associated with summer rainfall and drought in the northern part of India, especially the Western Himalayas.
🎯 IB ACIO Grade-II 2025
📘 Physiography of India📚 Himalayas - General Facts
Q18
Which of the following statements regarding the Trans-Himalayas are correct?
1. The Trans-Himalayas are sometimes referred to as the Tibetan Himalayas.
2. These mountains extend for about 1000 km in the east-west direction, with an average width of 40 km at the extremities and about 225 km in the central part.
3. The highest peaks in the Trans-Himalayas do not exceed 3000 metres in elevation.
4. Major mountain ranges in the Trans-Himalayas include Zanskar, Ladakh, Karakoram and Kailash.
🎯 IB ACIO Grade-II 2025
📘 Physiography of India📚 Coastal Plains
Q19
The coastal stretch of the Eastern Coastal Plain located between the Mahanadi and Krishna rivers is referred to as the ________.
🎯 IB ACIO Grade-II 2025
📘 Natural Vegetation and Biomes📚 Misc
Q20
What is the term used to describe species that are confined to a specific region and NOT found anywhere else?
🎯 IB ACIO Grade-II 2025