World & Physical Geography MCQs
World Geography Multiple Choice Questions (MCQs) Quiz for State and UPSC Civil Services Examinations. Objective Questions on Physical Geography and World Geography for competitive examinations.
1. Which of the following is the least dense planet among all the planets?
[A] Earth
[B] Uranus
[C] Jupiter
[D] Saturn
Show Answer
Correct Answer: D [Saturn]
Notes:Saturn is the least dense, while earth is most dense among all the planets. Its density is less than that of water. The average density of the planets in decreasing order is given below.
| Planet |
Average Density (gm/cm3) |
| Earth |
5.5 |
| Mercury |
5.4 |
| Venus |
5.2 |
| Mars |
3.9 |
| Neptune |
1.6 |
| Jupiter |
1.3 |
| Uranus |
1.3 |
| Saturn |
0.7 |
2. Which country has a flag with a pointed red maple leaf?
[A] Austria
[B] Canada
[C] Lebanon
[D] Australia
Show Answer
Correct Answer: B [Canada]
Notes:
Canadian Flag is also known as Maple Leaf Flag (l’Unifolié in French). It consists of a red field with a white square at its centre having a 11-pointed red maple leaf.
3. Which of the following South Asian country was never took over by any European Power?
[A] Thailand
[B] Laos
[C] Burma
[D] Vietnam
Show Answer
Correct Answer: A [Thailand]
Notes:
Thailand is the only country in South Asia which was not ruled by any European Power. The French, British , Dutch and Portugese had lot of colonies in south Asia. Thailand was not one of them. Burma was ruled by Bristish.
4. Who discovered Cosmic Rays?
[A] Henri Becquerel
[B] Theodor Wulf
[C] Robert Millikan
[D] Bruno Rossi
Show Answer
Correct Answer: C [Robert Millikan]
Notes:The term “cosmic rays” was coined by the Austrian physicist Victor Francis Hess in 1912. Hess was awarded the Nobel Prize in Physics in 1936 for his discovery of cosmic rays.
Cosmic rays are high-energy particles that travel through space and reach the Earth’s atmosphere. They are believed to be made up of protons, electrons, and atomic nuclei, and they can have energies that are millions or billions of times greater than those of particles produced by particle accelerators on Earth.
Hess discovered cosmic rays while conducting experiments in which he flew high-altitude balloon flights to measure the radiation levels at different altitudes. He found that the radiation levels increased with altitude, leading him to conclude that the radiation was coming from outer space and not from the Earth’s surface. He named these high-energy particles “cosmic rays” because they seemed to be coming from the cosmos.
5. In which nation will you find the world’s largest helium-rich natural gas reservoirs?
[A] Australia
[B] China
[C] India
[D] USA
Show Answer
Correct Answer: D [USA]
Notes:
The biggest reserves of helium-rich natural gas can be found in the United States, specifically in the regions of Kansas, Oklahoma, and Texas. These sites, especially the Hugoton field, are commonly referred to as the “Helium Capital of the World”. Helium, a valuable resource used in a variety of fields, from medical imaging to electronics, is increasingly becoming scarce globally.
6. Which of the following mountain ranges form the longest mountain chain in the world?
[A] The Rockies of North America
[B] The Andes of South America
[C] The Transantarctic Range
[D] The Great Dividing Range of Australia
Show Answer
Correct Answer: B [The Andes of South America]
Notes:
Andes is the world’s longest above-water mountain range, spanning over 4,300 miles. It’s located on the South American continent and crosses the borders of seven countries:
Venezuela, Bolivia, Chile, Colombia, Ecuador, Peru, Argentina.
The Andes stretches from Tierra del Fuego in the south to the continent’s northernmost coast on the Caribbean Sea. It’s also known for its volcanoes.
The longest mountain range on Earth is the mid-sea edge, which spans over 40,389 miles. Around 90% of the mid-sea edge framework is under the sea. The mid-ocean ridge system is part of every ocean in the world and marks the boundaries of the oceanic plates. It rises to 6,600 feet above the deepest part of the ocean basin.
7. Which is the most dry place in Asia Continent?
[A] Abudhabi
[B] Dubai
[C] Muscat (Oman)
[D] Aden (Yemen)
Show Answer
Correct Answer: D [Aden (Yemen)]
Notes:
Aden, Yemen is the most dry place in Asia continent and is one of the driest places in the Middle East. Aden is a port city and the temporary capital of Yemen, located by the eastern approach to the red sea.
8. Which of the following are found in Diamond and Emerald? (UPSC Prelims 1982)
[A] Carbon and silicon
[B] Carbon and zinc
[C] Silicon, aluminium and beryllium
[D] Carbon and calcium
Show Answer
Correct Answer: A [Carbon and silicon]
Notes:
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium and sometimes vanadium.
9. Kurds who have been fighting for a separate homeland live mainly in Iraq and which of the following countries? (UPSC Prelims 1991)
[A] Iran and Turkey
[B] Iran, Turkey and Jordan
[C] Iran, Jordan and Saudi Arabia
[D] Turkey and Jordan
Show Answer
Correct Answer: A [Iran and Turkey]
Notes:
The Kurdish people live in the historical Kurdistan region, which today is split between Iran, Iraq, and Turkey The estimated population is 35 million.
10. Match rivers labelled A, B, C and D on the given map with their names given in the list and select the correct answer using the codes given below the list:
List
1. St. Lawrence
2. Orinoco
3. Mackenzie
4. Amazon
5. Yukon

Codes: (UPSC Prelims 1998)
[A] A-4, B-3, C-2, D-1
[B] A-5, B-3, C-1, D-2
[C] A-5, B-4, C-1, D-3
[D] A-3, B-1, C-4, D-2
Show Answer
Correct Answer: B [A-5, B-3, C-1, D-2]
Notes:
In the given diagram of North America and South America
‘a’ marked river is Yukon
‘b’ marked river is Mackenzie
‘c’ marked river is St. Lawrence
‘d’ marked river is Orinoco