Geography World Regional Geography and Mapping UPSC Practice Questions

World Regional Geography — Practice Questions

UPSC Prelims-pattern map practice questions — Caspian littoral states, river mouths, ordering of straits, doubly landlocked countries and old fold mountains.

5 Questions Updated Oct 2026 #upsc#practice-questions#geography

Questions

These are original UPSC-pattern practice questions. Attempt each one with an atlas before revealing the answer.

UPSC Practice · Prelims GS I Qwm-1

Which of the following countries border the Caspian Sea?

  1. Azerbaijan
  2. Armenia
  3. Turkmenistan
  4. Uzbekistan

Select the correct answer using the code given below.

  1. A 1 and 3 only
  2. B 2 and 4 only
  3. C 1, 3 and 4 only
  4. D 1, 2, 3 and 4
Solution

The five Caspian littoral states are Russia, Kazakhstan, Turkmenistan, Iran and Azerbaijan.

  • Armenia is landlocked in the South Caucasus, west of Azerbaijan — no Caspian coast.
  • Uzbekistan is doubly landlocked; it shares the Aral Sea with Kazakhstan, not the Caspian.

Answer: A

UPSC-pattern practice question
UPSC Practice · Prelims GS I Qwm-2

Consider the following pairs:

RiverDrains into
1. VolgaCaspian Sea
2. DanubeBlack Sea
3. JordanRed Sea

Which of the pairs given above is/are correctly matched?

  1. A 1 only
  2. B 1 and 2 only
  3. C 2 and 3 only
  4. D 1, 2 and 3
Solution
  • Pair 1 — correct. The Volga ends in a delta on the Caspian.
  • Pair 2 — correct. The Danube delta lies on the Black Sea coast of Romania and Ukraine.
  • Pair 3 — wrong. The Jordan flows into the Dead Sea, which has no outlet. The Red Sea receives no major river.

Answer: B

UPSC-pattern practice question
UPSC Practice · Prelims GS I Qwm-3

Arrange the following straits from north to south:

  1. Bosporus
  2. Strait of Hormuz
  3. Bab-el-Mandeb
  4. Strait of Malacca

Select the correct answer using the code given below.

  1. A 2-1-3-4
  2. B 1-3-2-4
  3. C 1-2-3-4
  4. D 2-3-1-4
Solution
  • Bosporus (Istanbul) — about 41° N.
  • Strait of Hormuz — about 26–27° N.
  • Bab-el-Mandeb — about 12–13° N.
  • Strait of Malacca — just a few degrees north of the Equator.

Order: 1-2-3-4. A useful anchor: the Tropic of Cancer (23.5° N) lies between Hormuz and Bab-el-Mandeb.

Answer: C

UPSC-pattern practice question
UPSC Practice · Prelims GS I Qwm-4

Which of the following are doubly landlocked countries?

  1. Uzbekistan
  2. Liechtenstein
  3. Kazakhstan
  4. Paraguay

Select the correct answer using the code given below.

  1. A 1 only
  2. B 3 and 4 only
  3. C 1, 2 and 3 only
  4. D 1 and 2 only
Solution

A doubly landlocked country is surrounded only by landlocked countries. There are just two:

  • Uzbekistan — Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Turkmenistan.
  • Liechtenstein — Switzerland and Austria.

Kazakhstan is the largest landlocked country but borders Russia and China, which have coasts. Paraguay is landlocked but borders Brazil and Argentina, which have coasts.

Answer: D

UPSC-pattern practice question
UPSC Practice · Prelims GS I Qwm-5

Which of the following are old fold mountains?

  1. Appalachians
  2. Urals
  3. Andes
  4. Atlas

Select the correct answer using the code given below.

  1. A 1 only
  2. B 1 and 2 only
  3. C 2 and 3 only
  4. D 3 and 4 only
Solution

The Appalachians and the Urals are old fold mountains, long worn down into rounded ranges; the Urals are rich in minerals. The Andes and the Atlas are young fold mountains, like the Himalaya, Alps and Rockies, with high, rugged relief and ongoing tectonic activity.

Answer: B

UPSC-pattern practice question

Mains

UPSC Practice · Mains GS I 10 marks · 150 words Qwm-m1

Transboundary rivers are increasingly a source of tension between upstream and downstream countries. Examine with reference to the Nile and the Mekong.

Solution

Introduction: A transboundary river crosses or forms a boundary between countries. When upstream states build dams or divert water, downstream states fear for their water, food and energy security — a classic upstream–downstream dilemma.

Body:

  • Nile: the Blue Nile, rising at Lake Tana in Ethiopia, supplies most of the Nile’s water. Ethiopia’s Grand Ethiopian Renaissance Dam aims at hydropower and development; Egypt, almost entirely dependent on the Nile, and Sudan fear reduced flows, especially during filling and droughts. Colonial-era allocations that did not include upstream states complicate negotiations.
  • Mekong: rising on the Tibetan Plateau and flowing through six countries, it supports fisheries and rice farming in Cambodia (Tonle Sap) and Vietnam’s delta. A cascade of upstream dams alters flow timing and sediment supply; the Mekong River Commission includes the four lower-basin countries but not China.
  • Common issues: lack of binding basin-wide agreements, data-sharing gaps, climate variability, and sediment loss harming deltas.
  • Way forward: basin-level institutions, real-time hydrological data sharing, joint benefit-sharing (power trade, flood control), and principles of equitable and reasonable use.

Conclusion: Rivers ignore borders; cooperation that shares data and benefits, not just water volumes, is the only stable solution — a lesson relevant to South Asia’s own shared rivers.

UPSC-pattern practice question