UPSC Prelims 2012 Geography questions: topic-wise weightage
UPSC Prelims 2012 asked 9 geography questions in GS Paper I, spread over 3 topics. See the geography weightage for 2012 below, then attempt each question with the official answer and an explanation.
Geography 2012: questions by topic
- Climate and oceans5
- India: relief, rivers, lakes and monsoon2
- India: soils, vegetation, agriculture, minerals, energy, industry, population2
Counted from the 9 questions on this page, tagged by topic in the Battle IAS PYQ bank.
Seeing 9 Geography questions spread over 3 topics can feel overwhelming. That's exactly why the Battle IAS PYQ Book maps every question topic by topic, so you know what to study first. Download free sample
Climate and oceans 5
Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the Earth. What prevents them from reaching the surface of the Earth?
Answer (a) & explanation
The Earth's magnetic field is correct (a). The solar wind and cosmic rays are streams of charged particles. The Earth's magnetic field (magnetosphere) deflects them, traps some in the Van Allen belts, and steers others towards the poles, where they collide with air and cause the auroras. (b) is wrong: the ozone layer absorbs ultraviolet light, not charged particles. (c) is wrong: moisture in the upper atmosphere does not block them. (d) fails because (a) is correct.
Notice the recent events: the strong geomagnetic storms of May 2024 produced auroras visible even in Ladakh. India's Aditya-L1 (2023) studies the solar wind from the L1 point. Trap: the ozone layer protects against light, not particles.
Answer as per the official UPSC answer key.
Consider the following factors :
- 1. Rotation of the Earth
- 2. Air pressure and wind
- 3. Density of ocean water
- 4. Revolution of the Earth
Which of the above factors influence the ocean currents?
Answer (b) & explanation
Factors 1, 2 and 3 are correct (b). The Earth's rotation creates the Coriolis force, which deflects currents to the right in the north and left in the south, shaping gyres (1). Air pressure and winds, such as the trade winds and westerlies, drag surface water along (2). Differences in density, caused by temperature and salinity, drive deep thermohaline circulation (3). Item 4 is wrong: the Earth's revolution round the Sun gives seasons but does not move currents. So (a), (c) and (d) fail.
Notice the related ideas: the global 'conveyor belt', the AMOC, which scientists warn is weakening, and the Indian Ocean's monsoon-driven reversal of currents. Coastline shape and the sea floor also steer currents. Trap: revolution and rotation are easily confused.
Answer as per the official UPSC answer key.
Normally, the temperature decreases with the increase in height from the Earth’s surface, because
- 1. the atmosphere can be heated upwards only from the Earth’s surface
- 2. there is more moisture in the upper atmosphere
- 3. the air is less dense in the upper atmosphere
Select the correct answer using the codes given below :
Answer (c) & explanation
Statements 1 and 3 are correct (c). Sunlight passes through the air and heats the ground first; the ground then heats the air from below by radiation, conduction and convection (1). Higher up, the air is thinner, with fewer molecules and less water vapour and CO₂ to absorb and hold heat (3). So temperature falls about 6.5°C per km, the normal lapse rate. Statement 2 is wrong: moisture is greatest near the surface, not higher up. So (a), (b) and (d) fail.
Notice the exceptions: a temperature inversion, common on winter nights and in valleys, traps smog, as in Delhi each winter. In the stratosphere, temperature rises with height because ozone absorbs UV. Trap: statement 2 reverses where water vapour sits.
Answer as per the official UPSC answer key.
A person stood alone in a desert on a dark night and wanted to reach his village which was situated 5 km east of the point where he was standing. He had no instruments to find the direction but he located the polestar. The most convenient way now to reach his village is to walk in the
Answer (c) & explanation
Keeping the pole star to his left is correct (c). The pole star (Polaris) sits almost directly over the North Pole, so it marks north. The village lies to the east. Facing east, north is on your left, so he should walk with the pole star on his left. (a) is wrong: facing the pole star means walking north. (b) is wrong: walking away from it means going south. (d) is wrong: the pole star on the right means walking west.
Notice the related tricks: Polaris is found by following the two 'pointer' stars of the Big Dipper (Saptarishi). Its height above the horizon roughly equals your latitude, which is why it cannot be seen from the southern hemisphere. Trap: confusing left and right when imagining the turn.
Answer as per the official UPSC answer key.
Which one of the following is the characteristic climate of the Tropical Savannah Region?
Answer (d) & explanation
A definite dry and wet season is correct (d). The tropical savanna, or Sudan-type, climate lies between about 5° and 20° latitude, with a hot, wet summer when the ITCZ arrives and a long, dry winter when it retreats. This suits tall grasses with scattered trees, as in Africa's savannas and the Brazilian campos. (a) is wrong: rain throughout the year is the equatorial climate. (b) is wrong: winter-only rain is the Mediterranean climate. (c) is wrong: the savanna's dry season is long, not short.
Notice the fauna: savannas host the great herds of East Africa, with zebras, wildebeest and lions. Much of peninsular India has a tropical wet and dry (Aw) climate in Köppen's scheme. Trap: (c) describes the tropical monsoon fringe, not the savanna.
Answer as per the official UPSC answer key.
India: relief, rivers, lakes and monsoon 2
When you travel in Himalayas, you will see the following :
- 1. Deep gorges
- 2. U-turn river courses
- 3. Parallel mountain ranges
- 4. Steep gradients causing land-sliding
Which of the above can be said to be the evidences for Himalayas being young fold mountains?
Answer (d) & explanation
All four are correct (d). The Himalayas are young fold mountains, still rising as the Indian plate pushes into Asia. Fast uplift makes rivers cut deep gorges (1), such as the Indus, Sutlej and Dihang gorges, and take sharp U-turns at the syntaxial bends (2). The parallel ranges, Shiwalik, Lesser and Greater Himalaya, are sharp-crested and little eroded (3). Steep, unstable slopes cause frequent landslides (4). So options (a), (b) and (c) leave out real evidence.
Notice the contrast: old mountains like the Aravallis are worn down and gentle. Frequent earthquakes are further evidence. The Joshimath subsidence (2023) and the 2025 Dharali flash flood show the risks of building on young slopes. Trap: rivers older than the mountains are called antecedent rivers.
Answer as per the official UPSC answer key.
Consider the following statements :
- 1. The duration of the monsoon decreases from southern India to northern India.
- 2. The amount of annual rainfall in the northern plains of India decreases from east to west.
Which of the statements given above is/are correct?
Answer (c) & explanation
Both statements are correct (c). The monsoon arrives first in Kerala around 1 June and withdraws from the south last, in October–December, while it reaches north-west India in July and leaves in September, so its duration decreases from south to north (1). In the northern plains, the Bay of Bengal branch loses moisture as it moves west, so annual rainfall decreases from east to west, from over 150 cm in West Bengal to under 50 cm in western Rajasthan (2). So (a), (b) and (d) fail.
Notice the related rule: rainfall also decreases inland from the Western Ghats, leaving a rain-shadow in the Deccan. The 2025 monsoon onset over Kerala came early, on 24 May. Trap: both are standard gradients.
Answer as per the official UPSC answer key.
India: soils, vegetation, agriculture, minerals, energy, industry, population 2
A particular State in India has the following characteristics :
- 1. It is located on the same latitude which passes through northern Rajasthan.
- 2. It has over 80% of its area under forest cover.
- 3. Over 12% of forest cover constitutes Protected Area Network in this State.
Which one among the following States has all the above characteristics?
Answer (a) & explanation
Arunachal Pradesh is correct (a). Arunachal Pradesh lies at about 27°–29° N, the same band as northern Rajasthan around Bikaner and Sri Ganganagar (1). Its forest cover is about 79–80% of its area, among the highest in India (2), and a large share lies in protected areas such as Namdapha, Pakke and Dibang (3). (b) is wrong: Assam's forest share is far lower, about a third. (c) and (d) are wrong: Himachal (about 28%) and Uttarakhand (about 45%) have much less forest and lie farther north.
Notice the latest data: in ISFR 2023, Mizoram has the highest forest share by area (about 85%), while Madhya Pradesh has the largest forest area. Trap: the latitude clue rules out Himachal and Uttarakhand.
Answer as per the official UPSC answer key.
Despite having large reserves of coal, why does India import millions of tonnes of coal?
- 1. It is the policy of India to save its own coal reserves for future, and import it from other countries for the present use.
- 2. Most of the power plants in India are coal-based and they are not able to get sufficient supplies of coal from within the country.
- 3. Steel companies need large quantity of coking coal which has to be imported.
Which of the statements given above is/are correct?
Answer (b) & explanation
Statements 2 and 3 are correct (b). Most of India's electricity is coal-based, and domestic output has often not kept pace with demand from thermal plants, besides being of high-ash quality, so coastal plants import coal (2). India also has little good coking coal for steel, so steel makers import it, mainly from Australia (3). Statement 1 is wrong: there is no policy to save domestic coal for the future while importing for now. So (a), (c) and (d) fail.
Notice the trend: India's coal output crossed 1 billion tonnes in 2024–25, and imports of thermal coal for blending have fallen, but coking coal imports remain high. Mission Coking Coal aims to raise domestic supply. Trap: India has the world's fifth-largest reserves, yet still imports.
Answer as per the official UPSC answer key.
All years by topic
Every question from 2011 to 2026, grouped by syllabus topic, with year-wise trends.