Geomorphic Processes - Practice Test 1

Attempt the quiz above first, then review every question with its correct answer and a short explanation below.

1. Q1.Geomorphic processes are primarily divided into which two types?

   • A.Endogenic and Exogenic✓ Correct Answer
   • B.Physical and Chemical
   • C.Biological and Geological
   • D.Static and Dynamic

   Explanation: Geomorphic processes are classified into Endogenic (internal origin) and Exogenic (external origin) forces.

2. Q2.Which of the following is an Exogenic force?

   • A.Volcanism
   • B.Earthquake
   • C.Weathering✓ Correct Answer
   • D.Diastrophism

   Explanation: Weathering occurs on the Earth's surface due to atmospheric elements, making it an exogenic process.

3. Q3.The disintegration and decomposition of rocks in situ (at their original place) is called:

   • A.Erosion
   • B.Weathering✓ Correct Answer
   • C.Deposition
   • D.Mass Wasting

   Explanation: Weathering is the breaking down of rocks without movement/transportation.

4. Q4.Which process involves the removal and transport of soil and rock material?

   • A.Weathering
   • B.Erosion✓ Correct Answer
   • C.Lithification
   • D.Metamorphism

   Explanation: Erosion involves the wearing away and transport of material by agents like water, wind, or ice.

5. Q5.Exfoliation or 'Onion peeling' is a form of:

   • A.Chemical Weathering
   • B.Physical Weathering✓ Correct Answer
   • C.Biological Weathering
   • D.Tectonic movement

   Explanation: Physical weathering caused by pressure release or temperature changes leads to exfoliation.

6. Q6.Carbonation is a type of chemical weathering that primarily affects which rock?

   • A.Granite
   • B.Limestone✓ Correct Answer
   • C.Sandstone
   • D.Basalt

   Explanation: Carbon dioxide dissolved in water forms carbonic acid, which dissolves calcium carbonate in limestone.

7. Q7.Which gas is mainly responsible for oxidation (rusting) of rocks?

   • A.Nitrogen
   • B.Hydrogen
   • C.Oxygen✓ Correct Answer
   • D.Carbon Dioxide

   Explanation: Oxygen reacts with iron minerals in rocks to form iron oxides (rust), weakening the rock.

8. Q8.The movement of rock debris down a slope under the influence of gravity is called:

   • A.Erosion
   • B.Weathering
   • C.Mass Wasting / Mass Movement✓ Correct Answer
   • D.Deposition

   Explanation: Mass movement is the downslope transfer of material due to gravity alone.

9. Q9.Which of the following is a rapid mass movement?

   • A.Soil Creep
   • B.Solifluction
   • C.Landslide✓ Correct Answer
   • D.Weathering

   Explanation: Landslides are sudden and rapid movements, unlike creep which is very slow.

10. Q10.A 'V-shaped valley' is formed by which agent of erosion?

    • A.Wind
    • B.River (Running water)✓ Correct Answer
    • C.Glacier
    • D.Sea waves

    Explanation: Rivers erode vertically in their youthful stage creating deep V-shaped valleys.

11. Q11.Gorges and Canyons are associated with which stage of a river?

    • A.Youthful Stage✓ Correct Answer
    • B.Mature Stage
    • C.Old Stage
    • D.Delta Stage

    Explanation: Deep gorges and canyons are features of the youthful (upper) course of a river.

12. Q12.Grand Canyon in the USA was carved by which river?

    • A.Mississippi
    • B.Amazon
    • C.Colorado✓ Correct Answer
    • D.Nile

    Explanation: The Colorado River carved the Grand Canyon.

13. Q13.Which of the following is a depositional landform of a river?

    • A.Waterfall
    • B.V-shaped valley
    • C.Delta✓ Correct Answer
    • D.Gorge

    Explanation: Deltas are formed at the river mouth where sediments are deposited.

14. Q14.Meanders are typically formed in which stage of a river?

    • A.Youthful Stage
    • B.Mature and Old Stage✓ Correct Answer
    • C.Source
    • D.None

    Explanation: Meanders (bends) form in the mature and old stages when the river flows over flat plains.

15. Q15.An Ox-bow lake is formed when:

    • A.A river creates a waterfall
    • B.A meander loop gets cut off from the main river✓ Correct Answer
    • C.Glacier melts
    • D.Wind deposits sand

    Explanation: Erosion creates a cut-off lake from a meander loop, shaped like an ox-bow.

16. Q16.Alluvial Fans are formed at:

    • A.River Mouth
    • B.Foot of mountains (Foothills)✓ Correct Answer
    • C.Middle of the river
    • D.Deep ocean

    Explanation: When a river leaves the mountains and enters a plain, it deposits coarse sediments forming a fan shape.

17. Q17.The triangular shaped landform at the mouth of a river is called:

    • A.Estuary
    • B.Delta✓ Correct Answer
    • C.Lagoon
    • D.Strait

    Explanation: A Delta is formed by the deposition of sediments at the river mouth.

18. Q18.Which of these rivers forms an Estuary instead of a Delta?

    • A.Ganga
    • B.Narmada✓ Correct Answer
    • C.Godavari
    • D.Krishna

    Explanation: Narmada and Tapi rivers flow through rift valleys and form estuaries.

19. Q19.Bird's Foot Delta is formed by which river?

    • A.Nile
    • B.Ganga
    • C.Mississippi✓ Correct Answer
    • D.Amazon

    Explanation: The Mississippi River forms a bird's foot delta.

20. Q20.Arcuate Delta (Arc-shaped) is formed by:

    • A.Nile and Ganga✓ Correct Answer
    • B.Mississippi
    • C.Narmada
    • D.Ebro

    Explanation: The Nile and Ganga-Brahmaputra deltas are classic arcuate deltas.