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Geomorphic Processes

Geomorphic Processes, Land Forms, Geography, XI

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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following processes is the phenomenon of wearing down of relief variations of the surface of the earth through erosion?

  1. Geomorphic process
  2. Diastrophism
  3. Gradation
  4. Orogenic process
  5. Epeirogenic process
Question 2 Multiple Choice (Single Answer)

Which of the following statements is incorrect?

  1. Gravity activates all downslope movements of matter and also causes stresses on the earth’s materials.
  2. Direct gravitational stresses activate wave and tide induced currents and winds.
  3. The erosion, transportation and deposition of the earth's surface is possible due to gravity and gradation.
  4. Gravity is the force that switches on the movement of all surface material on earth.
  5. Any exogenic element capable of acquiring and transporting earth materials can be called a geomorphic agent.
Question 3 Multiple Choice (Single Answer)

The energy emanating from within the earth is the main force behind endogenic geomorphic processes. This energy is not generated by which of the following?

  1. Radioactivity
  2. Rotational friction
  3. Tidal friction
  4. Primordial heat from the origin of the earth
  5. Gravity
Question 4 Multiple Choice (Single Answer)

Which of the following are the actions of exogenic forces on the Earth's surface?
a. Wearing down or degradation of relief or elevations
b. Filling up or aggradation of basins or depressions
c. Elevation or building up parts of the earth’s surface

  1. Only a
  2. Only b
  3. Only c
  4. Only a and b
  5. All of these
Question 5 Multiple Choice (Single Answer)

Which of the following induces diastrophism and volcanism in the lithosphere?

  1. The energy due to geothermal gradients and heat flow from within the earth's crust.
  2. The processes that move, elevate or build up portions of the earth’s crust.
  3. The force applied on earth's materials affecting the same.
  4. The differences in the internal forces operating from within the earth, which built up the crust.
  5. The endogenic and exogenic forces causing physical stresses and chemical actions on earth's crust.
Question 6 Multiple Choice (Single Answer)

Which of the following is not a chemical weathering process?

  1. Solution
  2. Carbonation
  3. Unloading and expansion
  4. Hydration
  5. Oxidation and reduction
Question 7 Multiple Choice (Single Answer)

Which of the following processes does not come under diastrophism?

  1. Weathering processes
  2. Orogenic processes
  3. Epeirogenic processes
  4. Earthquakes involving local relatively minor movements
  5. Plate tectonics involving horizontal movements of crustal plates
Question 8 Multiple Choice (Single Answer)

After the process of hydration, calcium sulphate takes in water and converts into which of the following?

  1. Feldspar
  2. Gypsum
  3. limestone
  4. Sandstone
  5. Shale
Question 9 Multiple Choice (Single Answer)

Red colour of iron turns to brown or yellow when it reacts with oxygen. This red colour of iron turns to greenish or bluish grey by which of the following processes?

  1. Oxidation
  2. Hydration
  3. Carbonation
  4. Reduction
  5. Solution
Question 10 Multiple Choice (Single Answer)

Which of the following statements is incorrect?

  1. Movement of water-saturated clayey or silty earth materials down low-angle terraces, or hillsides is known as mud flow.
  2. Slump is slipping of one or several units of rock debris with a backward rotation on the slope over which the movement takes place.
  3. Solifluction involves slow down slope of flowing soil mass or fine grained rock debris saturated with water.
  4. The fence posts, telephone poles leaning down slope from their vertical position and in their linear alignment, is due to creep movement.
  5. Mass movements are aided by gravity and geomorphic agents, do not participate in the process of mass movements.
Question 11 Multiple Choice (Single Answer)

In rocks like granites, smooth surfaced and rounded small to big boulders called tors form due to exfoliation. These exfoliation tors are a result of which of the following?

  1. Unloading
  2. Thermal expansion
  3. Hydration
  4. Oxidation
  5. Reduction
Question 12 Multiple Choice (Single Answer)

Debris avalanche can be categorised as which of the following?

  1. Erosion and transportation
  2. Rapid mass movements
  3. Slow mass movements
  4. Exfoliation
  5. Landslides
Question 13 Multiple Choice (Single Answer)

Which of the following statements is/are true?
a. Parent material is a passive control factor in soil formation.
b. Nature and rate of weathering and depth of weathering mantle are important considerations under parent materials.
c. The influence of topography is felt through the amount of exposure of a surface covered by parent materials to sunlight.

  1. Only a
  2. Only b
  3. Only c
  4. All of these
  5. Only a and c
Question 14 Multiple Choice (Single Answer)

Which of the following is incorrect?

  1. Erosion involves acquisition and transportation of rock debris.
  2. By abrasion the relief degrades, i.e., the landscape is worndown.
  3. The erosion agents act as aggradational or depositional agents also.
  4. Deposition is a consequence of erosion, it is not the work of any agent.
  5. Five basic factors control the formation of soils, parent material, topography, climate, biological activity, and time.
Question 15 Multiple Choice (Single Answer)

Match the following columns:

 
Denudational process/energy Driving force
a. Weathering 1. Molecular stresses or gravitational force and chemical action
b. Mass movements 2. Gravitational forces
c. Erosion and transportation 3. Kinetic energy
  1. a - 1, b - 2, c - 3
  2. a - 2, b - 3, c - 1
  3. a - 3, b - 2, c - 1
  4. a - 3, b - 1, c - 2
  5. a - 1, b - 3, c - 2
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