MCQOPTIONS
Saved Bookmarks
This section includes 219 Mcqs, each offering curated multiple-choice questions to sharpen your Grade8 knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The sides of the acid lava volcanic cones are |
| A. | narrow |
| B. | wide |
| C. | steep |
| D. | shallow |
| Answer» D. shallow | |
| 52. |
Some of the tops of underwater volcanoes have emerged out of the sea to form |
| A. | ice lands |
| B. | islands |
| C. | small cliffs |
| D. | overwater stations |
| Answer» C. small cliffs | |
| 53. |
When an oceanic plate sub ducts beneath a continental plate to melt into the mantle is known as |
| A. | Underwater volcanism |
| B. | Volcanism at Destructive plate boundary |
| C. | Volcanism at hotspot |
| D. | Earthquake Volcanism |
| Answer» C. Volcanism at hotspot | |
| 54. |
A passageway that allows he magma to flow from vent to the crater is known as |
| A. | Vent |
| B. | Cone |
| C. | Pipe |
| D. | Crater |
| Answer» D. Crater | |
| 55. |
These rising columns of magma are found in fixed locations deep within the |
| A. | crust |
| B. | mantle |
| C. | outer core |
| D. | inner core |
| Answer» C. outer core | |
| 56. |
The number of classifications of volcanoes is |
| A. | three |
| B. | six |
| C. | nine |
| D. | twelve |
| Answer» B. six | |
| 57. |
Repeated eruptions of lava through the cracks over time build up layers upon layers of volcanic materials to form a |
| A. | hill |
| B. | ridge |
| C. | mountain |
| D. | volcano |
| Answer» E. | |
| 58. |
Lava that contains high amounts of iron and magnesium, but low amount of silica is known as |
| A. | Acid Lava |
| B. | Basic Lava |
| C. | Composite Lava |
| D. | Component Lava |
| Answer» C. Composite Lava | |
| 59. |
An example of subduction is the collision of |
| A. | Arabian and Eurasian Plate |
| B. | Persian and Arabian Plate |
| C. | Indo-Australian Plate and American Plate |
| D. | South American and Nazca Plate |
| Answer» E. | |
| 60. |
The Indo-Australian Plate collided with the Eurasian Plate to form the mountains, now known as |
| A. | Karakorum Range |
| B. | Hindu Kush Range |
| C. | Himalayas Range |
| D. | Mount Everest Range |
| Answer» D. Mount Everest Range | |
| 61. |
New crusts are formed at the |
| A. | constructive plate boundary |
| B. | abstractive plate boundary |
| C. | destructive plate boundary |
| D. | seductive plate boundary |
| Answer» B. abstractive plate boundary | |
| 62. |
The two continents that will move further apart due to the Divergent Movement of African and American Plates are |
| A. | Africa and Europe |
| B. | America and Africa |
| C. | Asia and Africa |
| D. | America and Australia |
| Answer» C. Asia and Africa | |
| 63. |
The outermost layer of the Earth is the |
| A. | crust |
| B. | mantle |
| C. | core |
| D. | troposphere |
| Answer» B. mantle | |
| 64. |
The higher density of Oceanic Plates is due to |
| A. | their huge size |
| B. | their thickness |
| C. | heavier elements in them |
| D. | metalloids present in them |
| Answer» D. metalloids present in them | |
| 65. |
It is a theory that describe how the Earth's crust is made up of |
| A. | rocks |
| B. | iron |
| C. | plates |
| D. | metalloids |
| Answer» D. metalloids | |
| 66. |
The Earth's crust is made up of several |
| A. | minor plates |
| B. | major and minor plates |
| C. | major plates |
| D. | layers |
| Answer» C. major plates | |
| 67. |
The Earth's Internal Structure is made up of |
| A. | two zones |
| B. | three zones |
| C. | five zones |
| D. | seven zones |
| Answer» C. five zones | |
| 68. |
When plates move away from each other, they |
| A. | converge |
| B. | diverge |
| C. | collapse |
| D. | form vacuum |
| Answer» C. collapse | |
| 69. |
The Transform Plate Movement is seen in a state of America known as |
| A. | Mississippi |
| B. | Alabama |
| C. | Texas |
| D. | California |
| Answer» E. | |
| 70. |
The core of the Earth is the |
| A. | outermost layer |
| B. | innermost zone |
| C. | middle zone |
| D. | atmosphere over the layers |
| Answer» C. middle zone | |
| 71. |
The crust is mainly made up of |
| A. | nickel |
| B. | rocks |
| C. | soil and sand |
| D. | iron |
| Answer» C. soil and sand | |
| 72. |
Nazca plate is a/an |
| A. | Oceanic Plate |
| B. | Continental Plate |
| C. | Aquatic Plate |
| D. | Mantle Plate |
| Answer» B. Continental Plate | |
| 73. |
The sliding past of two Crustal Plates in opposite direction is known as |
| A. | Convergent Plate Movement |
| B. | Divergent Plate Movement |
| C. | Transform Plate Movement |
| D. | Boundary Plate Movement |
| Answer» D. Boundary Plate Movement | |
| 74. |
Other than Continental Plates, the other type of Crustal Plates is |
| A. | Oceanic Plates |
| B. | Terrestrial Plates |
| C. | Aquatic Plates |
| D. | Antarctic Plates |
| Answer» B. Terrestrial Plates | |
| 75. |
Learning the Internal Structure of Earth will give us a greater understanding of |
| A. | crust |
| B. | mantle |
| C. | plate tectonics |
| D. | core |
| Answer» D. core | |
| 76. |
Both Continental and Oceanic Plates rest upon the |
| A. | crust |
| B. | mantle |
| C. | core |
| D. | atmosphere |
| Answer» C. core | |
| 77. |
The density of the elements present in the Oceanic Plates is |
| A. | equal to 3 |
| B. | less than 3 |
| C. | more than 3 |
| D. | more than 30 |
| Answer» D. more than 30 | |
| 78. |
The place where the plates move apart is filled with |
| A. | air |
| B. | vacuum |
| C. | rocks |
| D. | magma |
| Answer» E. | |
| 79. |
The boundary where the plates meet is called a/an |
| A. | obstructive plate boundary |
| B. | constructive plate boundary |
| C. | destructive plate boundary |
| D. | subductive plate boundary |
| Answer» D. subductive plate boundary | |
| 80. |
Crustal Plates move in |
| A. | two ways |
| B. | three ways |
| C. | four ways |
| D. | five ways |
| Answer» C. four ways | |
| 81. |
The divergence is cause because of the |
| A. | convection current in the crust |
| B. | convection current in the core |
| C. | convection current in the mantle |
| D. | blasts in the core |
| Answer» D. blasts in the core | |
| 82. |
The land areas beneath the seas and oceans are known as |
| A. | Oceanic Plates |
| B. | Terrestrial Plates |
| C. | Aquatic Plates |
| D. | Continental Plates |
| Answer» B. Terrestrial Plates | |
| 83. |
When the collision of Oceanic and Continental Plates takes place, the Continental Plate is pushed towards the |
| A. | mantle |
| B. | core |
| C. | crust |
| D. | ocean |
| Answer» D. ocean | |
| 84. |
The number of types of crustal plates is |
| A. | one |
| B. | two |
| C. | three |
| D. | four |
| Answer» C. three | |
| 85. |
The magma cools to form |
| A. | sea beds only |
| B. | crustal rocks only |
| C. | crustal rocks and sea floors |
| D. | rocks to support land and water |
| Answer» D. rocks to support land and water | |
| 86. |
Scientists believe that the mantle is made up of |
| A. | iron |
| B. | rocks |
| C. | sand |
| D. | zinc |
| Answer» C. sand | |
| 87. |
The place where two crustal plates meet is called the |
| A. | tectonic |
| B. | plate |
| C. | convergent boundary |
| D. | divergent boundary |
| Answer» C. convergent boundary | |
| 88. |
The plates made up of continents and parts of oceans are known as |
| A. | Oceanic Plates |
| B. | Terrestrial Plates |
| C. | Continental Plates |
| D. | Aquatic Plates |
| Answer» D. Aquatic Plates | |
| 89. |
When an Oceanic Plate collides with a Continental Plate, the Continental Plate is forced |
| A. | upwards |
| B. | into it |
| C. | downwards |
| D. | backwards |
| Answer» B. into it | |
| 90. |
The divergence of these two plates occur on the oceanic beds of the |
| A. | Atlantic Ocean |
| B. | Pacific Ocean |
| C. | Arctic Ocean |
| D. | Indian Ocean |
| Answer» B. Pacific Ocean | |
| 91. |
The boundary where Crustal Plate past each other is called the |
| A. | constructive plate boundary |
| B. | destructive plate boundary |
| C. | active plate boundary |
| D. | passive plate boundary |
| Answer» E. | |
| 92. |
Plate Tectonics is the study of the changes that are taking place in the Earth's |
| A. | Core |
| B. | Mantle |
| C. | Crust |
| D. | Atmosphere |
| Answer» D. Atmosphere | |
| 93. |
Unlike convergent and divergent plate boundaries, there is no construction or destruction in |
| A. | constructive plate boundary |
| B. | destructive plate boundary |
| C. | active plate boundary |
| D. | passive plate boundary |
| Answer» E. | |
| 94. |
The greater the magnitude, the |
| A. | lesser the amount of energy released |
| B. | greater the amount of energy released |
| C. | lesser the amount of energy absorbed |
| D. | greater the amount of energy absorbed |
| Answer» C. lesser the amount of energy absorbed | |
| 95. |
The earthquake is not noticeable up to the scale of |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 2 |
| Answer» B. 4 | |
| 96. |
At intensity level of '6' |
| A. | people don't feel earthquake |
| B. | poor buildings collapse |
| C. | building and bridges collapse |
| D. | people feel the tremor and windows rattle |
| Answer» C. building and bridges collapse | |
| 97. |
The magnitude of the earthquake can be measured using |
| A. | quake meter |
| B. | quake graph |
| C. | seismograph |
| D. | typanicgraph |
| Answer» D. typanicgraph | |
| 98. |
Earthquakes usually occur at the boundary of |
| A. | crustal plates |
| B. | mantle plates |
| C. | coral plate |
| D. | volcanic beds |
| Answer» B. mantle plates | |
| 99. |
Furniture may move and people may run outside the houses at the scale of |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 2 |
| Answer» D. 2 | |
| 100. |
At the intensity level of '1' |
| A. | people don't feel earthquake |
| B. | poor buildings collapse |
| C. | building and bridges collapse |
| D. | people feel the tremor and windows rattle |
| Answer» B. poor buildings collapse | |