World Geography Questions (MCQs) for UPSC, State PCS and SSC Examinations
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. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App
11. Mass wasting is the downslope movement of rock and soil under the direct influence of which among the following forces?
[A] Erosion
[B] Gravity
[C] Weathering
[D] Water
Show Answer
Correct Answer: B [Gravity]
Notes:
Gravity alone is the force having a direct influence in Mass wasting (downslope movement of rock and soil).
12. Which among the following factors trigger a mass wasting episode?
[A] Water
[B] Steep Slope
[C] Removal of vegetation
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Following factors trigger a mass wasting episode allowing gravity to move the mass downward:]Water
Steep slope
Removal of vegetation
Earthquakes
13. Which type of rocks is/are commonly affected by hydrolysis?
[A] Igneous
[B] Sedimentary
[C] Metamorphic
[D] Both 2 & 3
Show Answer
Correct Answer: A [Igneous]
Notes:
Hydrolysis is a chemical reaction between H+ and OH- ions in water and the minerals in the rock. Hydrolysis commonly affects igneous rocks as they are composed of silicate minerals, such as quartz and feldspar which readily combines with water.
14. Aeolian landforms refers to the landforms formed by which among the following?
[A] Wind
[B] Water
[C] Magma
[D] Floods
Show Answer
Correct Answer: A [Wind]
Notes:
Aeolian landforms refers to the landforms formed due to the action of wind. Aeolian landforms are formed due to erosional and depositional processes.
15. Which among the following is the longest cave system in the world?
[A] Jewel cave
[B] Mammoth cave
[C] Son Doong cave
[D] Clearwater cave system
Show Answer
Correct Answer: B [Mammoth cave]
Notes:
Caves are mostly found in areas of limestone rocks by the process of dissolution. The Mammoth Cave in Kentucky, US is the longest cave system (652 km) in the world.
16. What are long and narrow depressions of the sea floor called?
[A] Oceanic crest
[B] Continental slope
[C] Mid-oceanic ridge
[D] Oceanic trench
Show Answer
Correct Answer: D [Oceanic trench]
Notes:
Oceanic trenches are long and narrow depressions of the sea floor. They are the deepest parts of the ocean floor. They are a type of tectonic landforms.
17. What is a type of volcano that erupts volatiles such as water, ammonia or methane, instead of molten rock called?
[A] Cinder cone
[B] Caldera
[C] Cryovolcano
[D] Spatter cone
Show Answer
Correct Answer: C [Cryovolcano]
Notes:
A type of volcano that erupts volatiles such as water, ammonia or methane, instead of molten rock is called a Cryovolcano. It is informally called as Ice volcano.
18. Which among the following pairs of volcanic landforms is/are correctly matched?
- Diatreme – A volcanic pipe formed by a gaseous explosion
- Seamount – A mountain rising from the ocean seafloor that does not reach to the water’s surface
Select the correct code from the options given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
A volcanic pipe formed by a gaseous explosion is called a Diatreme. It is sometimes known as Maar – Diatreme volcano. They produce a steep inverted cone shape.
A mountain rising from the ocean seafloor that does not reach to the water’s surface is called a Seamount. They are typically formed of extinct volcanoes.
19. Which among the following pairs of weathered landforms is/are
not correctly matched?
- Etchplain – A plain where the bedrock has been subject to considerable subsurface weathering
- Flared slope – Small to large indentations in vertical to steeply sloping granular rock
Select the correct code from the options given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Show Answer
Correct Answer: B [Only 2]
Notes:
Etchplain is a plain where the bedrock has been subject to considerable subsurface weathering is called an Etchplain. The process of the formation of Etchplains is called Etchplantation.
Flared slope is a rock-wall with a smooth transition into a concavity at the foot zone is called a Flared zone. They are found in a variety of climates. They are most common in granitic rocks.
20. Which river island became the first island district in India?
[A] Srirangam
[B] Bhavani
[C] Majuli
[D] Shivanasamudram
Show Answer
Correct Answer: C [Majuli ]
Notes:
Majuli is a river island on the river Brahmaputra in the state of Assam, India. It is the first island to be made a district in 2016 in India
