Physical Geography MCQs

Practice Physical Geography MCQs with answers and detailed explanations covering the Earth's structure, landforms, rocks, volcanoes, earthquakes, atmosphere, hydrosphere, biosphere, weather, climate and important physical geography concepts frequently asked in SSC, Railway, Banking, UPSC, JKSSB, Police, Defence, Teaching and other competitive examinations.

663 Total
Question #261 Report Error
Which mineral is the primary source of aluminum?
A. Gypsum
B. Hematite
C. Mica
D. Bauxite

Correct Answer: Option D


Explanation:
Bauxite is the principal ore from which aluminum is extracted.

This question belongs to: Geography GK Physical Geography
Question #262 Report Error
Which rock is formed from volcanic ash and fragments?
A. Conglomerate
B. Breccia
C. Granite
D. Pumice

Correct Answer: Option B


Explanation:
Volcanic breccia is formed from angular volcanic fragments cemented together after eruptions.

This question belongs to: Geography GK Physical Geography
Question #263 Report Error
Pumice is unique because it:
A. Is a sedimentary rock
B. Floats on water
C. Is metallic
D. Contains iron

Correct Answer: Option B


Explanation:
Pumice contains numerous air-filled cavities, making it light enough to float on water.

This question belongs to: Geography GK Physical Geography
Question #264 Report Error
Which process transforms sediment into sedimentary rock?
A. Crystallization
B. Metamorphism
C. Fusion
D. Compaction and Cementation

Correct Answer: Option D


Explanation:
Sedimentary rocks are formed through compaction and cementation of sediments.

This question belongs to: Geography GK Physical Geography
Question #265 Report Error
The Earth's average radius is approximately:
A. 5,100 km
B. 8,371 km
C. 6,371 km
D. 3,371 km

Correct Answer: Option C


Explanation:
The average radius of Earth is approximately 6,371 kilometers.

This question belongs to: Geography GK Physical Geography
Question #266 Report Error
Which is the densest layer of the Earth?
A. Outer Core
B. Inner Core
C. Mantle
D. Crust

Correct Answer: Option B


Explanation:
The inner core is extremely dense due to immense pressure and its composition of iron and nickel.

This question belongs to: Geography GK Physical Geography
Question #267 Report Error
The study of volcanoes is called:
A. Seismology
B. Petrology
C. Volcanology
D. Hydrology

Correct Answer: Option C


Explanation:
Volcanology is the scientific study of volcanoes, lava, magma, and volcanic phenomena.

This question belongs to: Geography GK Physical Geography
Question #268 Report Error
Krakatoa Volcano is located in:
A. Chile
B. Indonesia
C. Japan
D. Philippines

Correct Answer: Option B


Explanation:
Krakatoa is a famous volcanic island located in Indonesia between Java and Sumatra.

This question belongs to: Geography GK Physical Geography
Question #269 Report Error
Which country has the highest number of active volcanoes?
A. Indonesia
B. Chile
C. Japan
D. United States

Correct Answer: Option A


Explanation:
Indonesia lies along the Pacific Ring of Fire and has the largest number of active volcanoes.

This question belongs to: Geography GK Physical Geography
Question #270 Report Error
A caldera is formed when:
A. A volcano collapses after eruption
B. A river changes course
C. Wind erosion occurs
D. A glacier melts

Correct Answer: Option A


Explanation:
A caldera is a large depression formed when a volcano collapses after a major eruption.

This question belongs to: Geography GK Physical Geography
Question #271 Report Error
Which earthquake wave causes the most destruction on the Earth's surface?
A. S-Waves
B. Surface Waves
C. Body Waves
D. P-Waves

Correct Answer: Option B


Explanation:
Surface waves travel along the Earth's surface and are responsible for most earthquake damage.

This question belongs to: Geography GK Physical Geography
Question #272 Report Error
The branch of science dealing with atmospheric conditions is called:
A. Oceanography
B. Geology
C. Meteorology
D. Hydrology

Correct Answer: Option C


Explanation:
Meteorology studies atmospheric processes, weather, and climate.

This question belongs to: Geography GK Physical Geography
Question #273 Report Error
Which gas contributes most to the greenhouse effect naturally?
A. Water Vapor
B. Hydrogen
C. Helium
D. Argon

Correct Answer: Option A


Explanation:
Water vapor is the most abundant greenhouse gas and contributes significantly to natural warming.

This question belongs to: Geography GK Physical Geography
Question #274 Report Error
Which atmospheric layer contains most artificial satellites?
A. Exosphere
B. Troposphere
C. Mesosphere
D. Stratosphere

Correct Answer: Option A


Explanation:
Many satellites orbit within the exosphere, the outermost atmospheric layer.

This question belongs to: Geography GK Physical Geography
Question #275 Report Error
Which instrument measures rainfall?
A. Rain Gauge
B. Barometer
C. Anemometer
D. Hygrometer

Correct Answer: Option A


Explanation:
A rain gauge is used to measure the amount of precipitation received.

This question belongs to: Geography GK Physical Geography
Question #276 Report Error
Which cloud type forms a uniform gray layer covering the sky?
A. Cumulus
B. Nimbus
C. Cirrus
D. Stratus

Correct Answer: Option D


Explanation:
Stratus clouds form low, gray layers that often cover the entire sky.

This question belongs to: Geography GK Physical Geography
Question #277 Report Error
The term 'albedo' refers to:
A. Reflectivity of a Surface
B. Ocean Depth
C. Humidity Level
D. Wind Speed

Correct Answer: Option A


Explanation:
Albedo is the proportion of incoming solar radiation reflected by a surface.

This question belongs to: Geography GK Physical Geography
Question #278 Report Error
Fresh snow has:
A. Medium Albedo
B. Zero Albedo
C. High Albedo
D. Low Albedo

Correct Answer: Option C


Explanation:
Fresh snow reflects most incoming sunlight and therefore has a very high albedo.

This question belongs to: Geography GK Physical Geography
Question #279 Report Error
The transfer of heat through direct contact is called:
A. Conduction
B. Convection
C. Reflection
D. Radiation

Correct Answer: Option A


Explanation:
Conduction transfers heat through direct molecular contact.

This question belongs to: Geography GK Physical Geography
Question #280 Report Error
The transfer of heat by movement of fluids is known as:
A. Radiation
B. Convection
C. Absorption
D. Conduction

Correct Answer: Option B


Explanation:
Convection transfers heat through the movement of liquids or gases.

This question belongs to: Geography GK Physical Geography