Tue. Jun 25th, 2024

Hillslope

  1. What is the genetic classification of hillslopes based on?

    Options:
    1. The mode of their origin and development
    2. The types of vegetation cover on the slopes
    3. The steepness levels of the slopes
    4. The soil composition of the slopes

    Option: A

  2. Which of the following is an example of a convex-rectilinear-free face-rectilinear-concave slope?

    Options:
    1. A slope with a convex upper portion, a straight middle portion, a basal free face, a straight lower portion, and a concave base
    2. A slope with a convex upper portion, a straight middle portion, a concave basal portion, and a free face at the base
    3. A slope with a convex upper portion, a straight middle portion, a basal free face, and a concave base
    4. A slope with a convex upper portion, a basal free face, and a concave base

    Option: A

  3. What is an example of a tectonic slope?

    Options:
    1. Valley side slope
    2. Morainic ridges deposited by glaciers
    3. Free face and pediment slopes
    4. Scarp slope

    Option: D

  4. What are the three stages of erosion for erosional slopes developed by rivers?

    Options:
    1. Concave, rectilinear, convex
    2. Convex, rectilinear, concave
    3. Concave, convex, rectilinear
    4. Rectilinear, convex, concave

    Option: B

  5. What is the definition of aggradational slopes?

    Options:
    1. Slopes formed due to surface erosion and weathering
    2. Slopes formed due to deposition of eroded sediments
    3. Minor slopes developed at the base of primary slopes
    4. Steep cliff slopes formed by sea waves

    Option: B

  6. What are primary slopes?

    Options:
    1. Minor slopes developed at the base of primary slopes
    2. Slopes formed due to surface erosion and weathering
    3. Slopes formed due to deposition of eroded sediments
    4. Slopes formed due to erosion by streams, glaciers, sea waves et

    Option: D

  7. What are secondary slopes?

    Options:
    1. Minor slopes developed at the base of primary slopes
    2. Slopes formed due to surface erosion and weathering
    3. Slopes formed due to deposition of eroded sediments
    4. Steep cliff slopes formed by sea waves

    Option: A

  8. What is quantitative classification?

    Options:
    1. Classification based on the type of slope genesis
    2. Classification based on the stage of formation of slopes
    3. Classification based on slope angles
    4. Classification based on the denudational processes

    Option: C

  9. How many major categories did Young classify slopes into based on slope angles?

    Options:
    1. Five
    2. Six
    3. Seven
    4. Eight

    Option: C

  10. What are some of the problems of slope development according to the text?

    Options:
    1. Varying forms of slopes, slope is a three-dimensional feature, and relationships between climatic factors and slope forms
    2. Geological structure and lithology, progressive changes in slope forms with time, and denudation balance of slope
    3. Parallel retreat of slope and grading of slope profile, and relationships between mass movements and slopes
    4. All of the above

    Option: D

  11. What are the three approaches to the study of slope development according to the text?

    Options:
    1. Theoretical approach, experimental approach, and empirical approach
    2. Geological approach, climate approach, and denudational approach
    3. Field approach, laboratory approach, and theoretical approach
    4. Experimental approach, field approach, and climate approach

    Option: A

  12. What is the “model of slope decline” in geomorphology?

    Options:
    1. A model that suggests slopes always decline in slope gradient over time.
    2. A model that suggests slopes maintain their angles through parallel retreat.
    3. A model that suggests slopes can either decline in gradient or maintain their angles through parallel retreat.
    4. A model that suggests slopes maintain their angles until they erode completely.

    Option: C

  13. What are some of the difficulties faced by geomorphologists when attempting to describe the historical evolution of slopes?

    Options:
    1. Lack of requisite evidence and problems with dating slope development.
    2. Lack of interest in the subject matter and difficulties with accessing the slopes.
    3. Difficulty in measuring slope angle and inconsistency in the types of rocks.
    4. None of the above.

    Option: A

  14. According to the process-form approach, what is the relationship between slope types and geomorphic processes?

    Options:
    1. There is no relationship between slope types and geomorphic processes.
    2. There is an indirect relationship between slope types and geomorphic processes.
    3. There is a direct relationship between slope types and geomorphic processes.
    4. There is a direct relationship between slope types and vegetation cover.

    Option: C

  15. What are some of the difficulties faced by the process-form approach?

    Options:
    1. The difficulty in isolating the processes affecting slope development and the fact that slope forming processes operate very slowly.
    2. The difficulty in measuring slope angle and the inconsistency in the types of rocks.
    3. The difficulty in measuring the rates of action of slope forming processes and the lack of interest in the subject matter.
    4. None of the above.

    Option: A

  16. What is the concept of climatic uniformitarianism according to L. King?

    Options:
    1. The idea that slope forms are controlled by unique factors in each climate.
    2. The idea that slope forms are controlled by several factors and are found in almost all climates.
    3. The idea that slope forms are only found in arid and semi-arid climates.
    4. The idea that slope forms are only found in humid temperate climates.

    Option: B

  17. Which of the following is not a factor that controls slope forms?

    Options:
    1. Geological structure
    2. Vegetation cover
    3. Rainfall intensity
    4. Mass wasting

    Option: C

  18. What are the two approaches to the study of process-form approach of slope studies?

    Options:
    1. Soil creep and debris flow
    2. Mono-process and poly-process concepts
    3. Overland flow and rain splash
    4. Rill and gully erosion

    Option: B

  19. According to N.M. Fenneman, what is the result of differential actions of surface runoff and overland flow on convexo-concave hillslopes?

    Options:
    1. The crestal areas of hillslope are eroded by surface runoff and debris flow.
    2. The crestal areas of hillslope are least eroded by surface runoff and rainwash smoothes the hill crest to give it a convex plan.
    3. The basal segment of hillslope is least eroded by surface runoff and debris flow and the crestal areas are most erode
    4. The basal segment of hillslope is most eroded by surface runoff and rainwash smoothes the hill crest to give it a concave plan.

    Option: B

  20. According to G.K. Gilbert, what is the most dominant process in the development of convex slope of a hillslope profile?

    Options:
    1. Rainwash
    2. Soil creep
    3. Debris flow
    4. Overland flow

    Option: B