Geomorphology 200 Important MCQS Part 3 FOR NTA UGC NET
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Q.51. The concept of Sea floor spreading (1960) was propounded by
(A) W.J. Morgan
(B) Mackenzie
(C) Hary Hess
(D) Le Pichon
Answer: C
Explanation:
Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
The seafloor spreading hypothesis was proposed by the American geophysicist Harry H. Hess in 1960
Q.52. What is Magnetometer?
(A) An instrument which measures intensity of Seismic Tremors
(B) An instrument which measures the magnet of the earth
(C) An instrument measures the depth of ocean
(D) An instrument measures the velocity of wind
Answer: B
Explanation:
Q.53. What is Isohyet?
(A) The line joins the equal salinity
(B) The line joins the equal rainfall
(C) The line joins the points of equal dates of magnetic strips plotted on the map.
(D) The line joins the equal cloudiness
Answer: B
Explanation:
Q.54. The subduction zones of plates are called
(A) Buffer Zone
(B) Mid Oceanic
(C) Sea Floor Sprading
(D) Benioff Zone
Answer: D
Explanation:
Q.55. Which of the following ocean is reducing due to the tectonic movement?
(A) Atlantic Ocean
(B) Pacific Ocean
(C) Indian Ocean
(D) Arctic Ocean
Answer: B
Explanation:
Q.56. Which of the following ocean is spreading due to plate tectonic movement?
(A) Atlantic Ocean
(B) Pacific Ocean
(C) Indian Ocean
(D) Arctic Ocean
Answer: A
Explanation:
Q.57. The term ‘Isostasy’ was first time given by
(A) James Hutton
(B) Airy
(C) Pratt
(D) Dutton
Answer: D
Explanation:
The general term ‘isostasy’ was coined in 1882 by the American geologist Clarence Dutton.
Q.58. Who gave the concept of ‘Law of Floatation’ in relation to Isostasy?
(A) Dutton
(B) Airy
(C) Pratt
(D) James Hutton
Answer: B
Explanation:
Q.59. ‘Mountains have roots’ – the statement was given by
(A) Airy
(B) Pratt
(C) Hayward
(D) Holmes
Answer: A
Explanation:
Q.60. Who gave the concept of the level of compensation in related to Isostasy
(A) Dutton
(B) Pratt
(C) Airy
(D) Bowie
Answer: B
Explanation:
Q.61. The most abundant element of the earth’s crust is
(A) Iron
(B) Aluminum
(C) Oxygen
(D) Silicon
Answer: C
Explanation:
Q.62. Which among the following rock is called primary rocks as well as parent rocks
(A) Igneous Rock
(B) Sedimentary
(C) Metamorphic Rocks
(D) Sandstone
Answer: A
Explanation:
Q.63. Fossils is the most important characteristics of –
(A) Igneous Rock
(B) Sedimentary Rocks
(C) Metamorphic Rocks
(D) Granite Rocks
Answer: B
Explanation:
Q.64. What is Mesa?
(A) A important minerals contain hills
(B) An isolated steep-sided flat topped hill in a basaltic lava capped plateau
(C) A fine to coarse grained metamorphic rocks
(D) a residual hills
Answer: B
Explanation:
Butte : It is a small isolated flat-topped hill with steep sides.
Mesa : It is a bigger landmass with steep sides and flat top like a table.
( Mesa is a Spanish word for ‘Table’ )
Q.65. Arrange the gravels in a sequential order from larger to smaller by given their size
(A) Boulder, Granule, Cobble, Pebble, Sand
(B) Boulder, Cobble, Pebble, Granule, Sand
(C) Sand, Granule, Pebble, Cobble, Boulder
(D) Cobble, Pebble, Boulder, Granule, Sand
Answer: B
Explanation:
Boulders – 256 mm
Cobbles – 64 mm
Pebbles – 4 mm
Granule – 2 mm
Sand – 1 mm – 1/16mm
Q.66. What is Lapilli?
(A) A Kind of Metamorphic Rocks
(B) A Residual Hills
(C) The Fragments of Volcanic Materials that falls out of the air during Volcanic Eruption
(D) None of these
Answer: C
Explanation:
Q.67. Match List-I with List-II and select the correct answer using the code given below
| List-I
(Original Rocks) |
List-II
(Metamorphic Rocks) |
| A. Basalt/Mica | 1. Marble |
| B. Sandstone | 2. Slate |
| C. Granite | 3. Graphite |
| D. Shale | 4. Schist |
| E. Limestone | 5. Genesis |
| F. Coal | 6. Quartzite |
Code:
| A | B | C | D | E | F | |
| A. | 4 | 6 | 5 | 1 | 2 | 3 |
| B. | 4 | 6 | 5 | 2 | 1 | 3 |
| C. | 4 | 3 | 2 | 6 | 1 | 5 |
| D. | 3 | 1 | 2 | 5 | 6 | 4 |
Answer: B
Explanation:
Q.68. During volcanic eruption deposition of lava in anticlines and synclines of folded mountains accounts for formation of
(A) Phacolith
(B) Lopolith
(C) Batholith
(D) Lacolith
Answer: A
Explanation:
During volcanic eruption deposition of lava in anticlines and synclines of folded mountains accounts, for formation of phacolith. A phacolith is a pluton 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.69. Molten rock materials below the earth surface are called
(A) Lava
(B) Magma
(C) Liquid Gases
(D) Vapour
Answer: B
Explanation:
Q.70. Molten rocks materials above the earth surface are called
(A) Lava
(B) Magma
(C) Geyser
(D) Caldera
Answer: A
Explanation:
Q.71. A Large basin shaped of volcanic crater is called
(A) Volcanic Cones
(B) Fumaroles
(C) Caldera
(D) Tephra
Answer: C
Explanation:
Q.72. ‘Lahar’ is a natural disaster involving
(A) Strong Water Waves
(B) Eruption of large amount of materials
(C) Strong Winds
(D) Strong Winds and Water Waves
Answer: B
Explanation:
A lahar is a violent type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris and water. The material flows down from a volcano, typically along a river valley.
Q.73. Which Volcano is called ‘Light Pillar of Mediterranean Sea’?
(A) Hawaiian
(B) Strombolian
(C) Pellean
(D) Fuziama
Answer: B
Explanation:
Q.74. Match List-l with List-II and Select the correct answer using the given below
| List-I
(Types of Volcano) |
List-II
(Examples) |
| A. Active Volcano | 1. Hawaiian Types |
| B. Dormant Volcano | 2. Cotopaxi (Equador) |
| C. Extinct Volcano | 3. Mt.Popa (Myanmar) |
| D. Pele’s Hair | 4. Visuvious (Italy) |
Code:
| A | B | C | D | |
| A. | 3 | 1 | 4 | 2 |
| B. | 2 | 4 | 1 | 3 |
| C. | 2 | 4 | 3 | 1 |
| D. | 3 | 2 | 4 | 1 |
Answer: C
Explanation:
- Active Volcano – Cotopaxi (Equador)
- Dormant Volcano – Visuvious (Italy)
- Extinct Volcano – Mt.Popa (Myanmar)
- Pele’s Hair – Hawaiian Types
Q.75. The Nickname ‘The Valley of Ten Thousand Smokes’ is given to
(A) Stromboli Volcano
(B) Katmai Volcano
(C) Mauna Loa Volcano
(D) Hawaiian Volcano
Answer: B
Explanation: