Geomorphology 200 Important MCQS Part 8 FOR NTA UGC NET
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Q.176. “Shadow Zone” is an earthquake is produced due to
(A) P-Wave
(B) S-Waves
(C) Refraction of P-Waves and Absorption of S-Waves
(D) Low magnitude of an earthquake
Answer: C
Explanation:
The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core.
Q.177. Which of the following is formed due to tectonic forces
(A) Hanging Valley
(B) Superimposed Valley
(C) Rift Valley
(D) Antecedent Valley
Answer: C
Explanation:
Q.178. Which of the following Rift Valley has its bottom/floor is below sea level –
(A) Jordan Valley
(B) Narmada Valley
(C) Tapi Valley
(D) Death Valley (California)
Answer: D
Explanation:
Q.179. In which of the following area most of the earthquakes of the world come?
(A) Atlantic ocean belt
(B) Circum Pacific Ocean belt
(C) Mediterranean sea belt
(D) Indian Ocean belt
Answer: B
Explanation:
Q.180. Lopolith and Phacolith are produced in which rocks
(A) Igneous Rocks
(B) Sedimentary Rocks
(C) Metamorphic Rocks
(D) None of these
Answer: A
Explanation:
Lopolith, igneous intrusion associated with a structural basin, with contacts that are parallel to the bedding of the enclosing rocks. In an ideal example, the enclosing sediments above and below the lopolith dip inward from all sides toward the centre, so that the lopolith is concave upward. Lopoliths, which can be several miles to several hundred miles in diameter, with thicknesses up to several thousand feet, are some of the largest igneous intrusions known.
A phacolith is a pluton of igneous rock parallel to the bedding plane or foliation of folded country rock. More specifically, it is a typically lens-shaped pluton that occupies either the crest of an anticline or the trough of a syncline.
Q.181. How many stages of cycle of erosion were mentioned
(A) 1
(B) 2
(C) 3
(D) 4
Answer: C
Explanation:
Geomorphological Cycle of Davis
- Davis postulated his concept ‘Cycle of Erosion’ in 1899
- According to Davis three factors play an important role in the origin and development of landforms & the factors are Structure, Process & Time
- These three factors are known as ‘Trio of Davis’
- Landform is the products of the interactions of two forces i.e endogenetic and exogenetic forces.
- Evolution of landforms takes place in an orderly manner.
- Davis Model of cycle of erosion is Time dependent series.
- Erosion does not start until the upliftment is complete.
- The convex-concave landforms which are remain as residue after the completion of cycle of erosion are termed as Monadnocks
Q.182. The Sub-Arial erosion theory is related with the origin of –
(A) Continental Shelf
(B) Continental Slope
(C) Spring Tide
(D) Sub-Marine Canyon
Answer: D
Explanation:
Q.183. The highly destructive and explosive volcano is
(A) Visuvius type
(B) Strombolian type
(C) Pelean type
(D) Hawaiian type
Answer: C
Explanation:
A Pelean eruption is associated with explosive outbursts that generate pyroclastic flows, dense mixtures of hot volcanic fragments and gas described in the section Lava, gas, and other hazards. Pelean eruptions are named for the destructive eruption of Mount Pelée on the Caribbean island of Martinique in 1902
Q.184. Frost action is most pronounced in the
(A) Equatorial climate
(B) Mediterranean climate
(C) Temperate climate
(D) Tundra Climate
Answer: D
Explanation:
The tundra climate region occurs between 60° and 75° of latitude, mostly along the Arctic coast of North America and Eurasia and on the coastal margins of Greenland.
Q.185. The alluvial fans are formed in the regions of
(A) Delta
(B) Foot hills
(C) Flood plain
(D) High Mountains
Answer: B
Explanation:
Alluvial fans due to accumulation of materials are always formed at base of foothill where there is abrupt decrease in the channel gradient.
The transporting capacity of the streams decreases enormously at the foothill zones while they leave the mountains and enter the plain topography because of substantial decrease in channel gradient.
Consequently, load consisting of finer to coarser and big sized material coming from upstream is deposited at the point of break in slope or foothill zone thus alluvial fans are formed.
Q.186. The spontaneous downhill movement regolith and bed-rock, under the influence of gravity is known as
(A) Lahar
(B) Rock-creep
(C) Rock-slide
(D) Mass wasting
Answer: D
Explanation:
Mass wasting, also known as slope movement or mass movement, is the geomorphic process by which soil, sand, regolith, and rock move downslope typically as a solid, continuous or discontinuous mass, largely under the force of gravity, frequently with characteristics of a flow as in debris flows and mudflows.
Q.187. The term grooving is associated with
(A) Running Water
(B) Glacier
(C) Sea-Wave
(D) Wind Action
Answer: A
Explanation:
Q.188. The term out-wash plain is associated with the
(A) Underground water
(B) Glacier
(C) Wind action
(D) Running water
Answer: B
Explanation:
Glacial outwash is the sand, gravel and other materials deposited by running meltwater – that is, the water leaving the glacier as temperature rises. Heavier particles of sand and gravel are deposited in the glaciated valley. The individual gravel stones are smoothed and rounded by their journey. Lighter, finer particles – for instance, clay – are transported further away from the glacier and deposited in what is known as the outwash plain.
An outwash plain, also called a sandur, sandr or sandar.
Q.189. In the process of erosion, the removal of materials by solution is called
(A) Corrasion
(B) Attrition
(C) Corrosion
(D) Sapping
Answer: C
Explanation:
Q.190. Match List-I with List-II from the code given below
| List-I
(Type of Mountain) |
List-II
(Example) |
| A. Block Mountain | 1. Himalayas |
| B. Old Folded Mountain | 2. Black Forest |
| C. Alpine Mountains | 3. Andese |
| D. Young Folded Mountains | 4. Appalachian |
Codes:
| A | B | C | D | |
| A. | 1 | 3 | 4 | 2 |
| B. | 2 | 4 | 3 | 1 |
| C. | 2 | 4 | 1 | 3 |
| D. | 4 | 2 | 1 | 3 |
Answer: B
Explanation:
Q.191. The world famous Grand Canyon has well develop in the river of –
(A) Amazon River
(B) Missippi River
(C) Murry-Darling Basin
(D) Colorado River
Answer: D
Explanation:
Q.192. The largest fresh water storage of the world lies in
(A) Himalayas
(B) Greenland
(C) Antarctica
(D) Siachen Glacier
Answer: C
Explanation:
Q.193. The Metamorphic rocks are formed under
(A) High Pressure and Low Temperature
(B) High Pressure and High Temperature
(C) Low Pressure and Low Temperature
(D) Low Pressure and High Temperature
Answer: B
Explanation:
These rocks form under the action of volume, pressure, and temperature (PVT) changes.
Metamorphism happens when rocks are forced down to lower levels by tectonic processes or when molten magma rising through the crust comes in contact with the crustal rocks or the underlying rocks are exposed to great amounts of pressure by overlying rocks.
The materials of rocks chemically modify and recrystallize due to thermal metamorphism.
Q.194. The Rift Valleys are caused by
(A) Endogenetic Forces
(B) Exogenetic Forces
(C) Volcanoes
(D) Earthquakes
Answer: A
Explanation:
Endogenic movements: The energy emanating from within the earth is the main force behind endogenic geomorphic processes. The earth movements are mainly of two types: diastrophism and sudden movements.
Q.195. The most abundant rock type in the earth’s crust is
(A) Metamorphic
(B) Secondary rocks
(C) Igneous rocks
(D) Sedimentary rocks
Answer: D
Explanation:
Q.196. Match List-I with List-II from the codes given below
| List-I
(Landforms) |
List-II
(Origin) |
| A. Loess Plain | 1. Glacial Landforms |
| B. Spits | 2. Aeolian Landforms |
| C. Hanging Valley | 3. Fluvial Landforms |
| D. Natural Levees | 4. Coastal Landforms |
Codes:
| A | B | C | D | |
| A. | 3 | 2 | 4 | 1 |
| B. | 2 | 4 | 3 | 1 |
| C. | 2 | 4 | 1 | 3 |
| D. | 4 | 2 | 3 | 1 |
Answer: C
Explanation:
Q.197. The Nazca plate lies on
(A) East of South America
(B) West of South America
(C) East of North America
(D) West of North America
Answer: B
Explanation:
Q.198. Match List-I with Lit-II and select the correct answer from the codes given below
| List-I
(Landforms) |
List-II
(Agents) |
| A. Arete | 1. Periglacial |
| B. Polje | 2. Running Water |
| C. Pot Holes | 3. Karst Topography |
| D. Bajada | 4. Wind |
| E. Hummocks | 5. Glacier |
Codes:
| A | B | C | D | E | |
| A. | 5 | 2 | 3 | 4 | 1 |
| B. | 1 | 4 | 2 | 1 | 4 |
| C. | 5 | 3 | 2 | 1 | 4 |
| D. | 5 | 3 | 2 | 4 | 1 |
Answer: D
Explanation:
Q.199. Most of the details world topography belongs to the
(A) Pre-Cambrian Era
(B) Paleozoic Era
(C) Cenozoic Era
(D) Mesozoic Era
Answer: C
Explanation:
Q.200. Match List-I with List-II from the codes given below
| List-I
(Landforms) |
List-II
(Agents) |
| A. Blind Valley | 1. Glacier |
| B. Hamada | 2. Wind |
| C. Tors | 3. Karst Topography |
| D. Structural Benches | 4. Periglacial |
| E. Fiords | 5. River |
Codes:
| A | B | C | D | E | |
| A. | 5 | 1 | 4 | 3 | 2 |
| B. | 2 | 3 | 4 | 1 | 5 |
| C. | 3 | 2 | 4 | 5 | 1 |
| D. | 3 | 2 | 5 | 4 | 1 |
Answer: C
Explanation: