MCQOPTIONS
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MCQOPTIONS
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.
| 201. |
A reference to the process by which materials such as magma and gases from inside the Earth are forced onto the Earth's surface is |
| A. | Eruption |
| B. | Lava |
| C. | Volcanism |
| D. | Earthquake |
| Answer» D. Earthquake | |
| 202. |
The movement of crustal plates result in formation of |
| A. | a huge island |
| B. | small volcanic islands |
| C. | a small island |
| D. | huge volcanic islands |
| Answer» C. a small island | |
| 203. |
Composite volcanoes are made up of alternate layers of |
| A. | ash and cinder only |
| B. | dense lava and ash |
| C. | viscous lava, ash and cinder |
| D. | pyroclastic lava, ash and cinder |
| Answer» D. pyroclastic lava, ash and cinder | |
| 204. |
The divergence of plates allows magma from the mantle to reach the surface as |
| A. | ice |
| B. | rocks |
| C. | lava |
| D. | stones |
| Answer» D. stones | |
| 205. |
Compared to acid lava, the basic lava travels |
| A. | more after it solidifies |
| B. | less after it solidifies |
| C. | more before it solidifies |
| D. | less before it solidifies |
| Answer» D. less before it solidifies | |
| 206. |
The volcanism that takes place at the constructive plate boundary on the ocean floor is known as |
| A. | Underwater volcanism |
| B. | Volcanism at Destructive plate boundary |
| C. | Volcanism at hotspot |
| D. | Earthquake Volcanism |
| Answer» B. Volcanism at Destructive plate boundary | |
| 207. |
As the crustal plate moves, it carries along the volcano which becomes |
| A. | cold |
| B. | hot |
| C. | extinct |
| D. | old |
| Answer» D. old | |
| 208. |
The layers of volcanic materials that build up around the vent to form a cone-shaped structure are known as |
| A. | Vent |
| B. | Cone |
| C. | Pipe |
| D. | Crater |
| Answer» C. Pipe | |
| 209. |
Volcanoes that haven't erupted in historic times are known as |
| A. | Active volcanoes |
| B. | Dormant volcanoes |
| C. | Extinct volcanoes |
| D. | Instinct volcanoes |
| Answer» D. Instinct volcanoes | |
| 210. |
Compared to the Continental Plates, the Oceanic Plates are |
| A. | less thick |
| B. | more thick |
| C. | lighter |
| D. | smaller |
| Answer» B. more thick | |
| 211. |
When the collision of Oceanic and Continental Plates takes place, the Oceanic Plate is pushed towards the |
| A. | mantle |
| B. | core |
| C. | crust |
| D. | ocean |
| Answer» B. core | |
| 212. |
Compared to Oceanic Plates, the Continental Plates are |
| A. | more dense and heavy |
| B. | less dense but heavy |
| C. | more dense but light |
| D. | less dense and light |
| Answer» E. | |
| 213. |
An example of divergence of two plates is |
| A. | Arabian Plate from Persian Plate |
| B. | South American Plate from African Plate |
| C. | Arabian Plate from Eurasian Plate |
| D. | Indo-Australian Plate from Eurasian Plate |
| Answer» C. Arabian Plate from Eurasian Plate | |
| 214. |
The mantle is mainly |
| A. | solid |
| B. | semi-solid |
| C. | molten |
| D. | gaseous |
| Answer» D. gaseous | |
| 215. |
The volcano that forms from the column of magma is called a/an |
| A. | underwater volcano |
| B. | convergent volcano |
| C. | divergent volcano |
| D. | hot spot volcano |
| Answer» E. | |
| 216. |
The top of the magma is forced onto the Earth's surface is known as |
| A. | Vent |
| B. | Cone |
| C. | Pipe |
| D. | Crater |
| Answer» E. | |
| 217. |
The sticky or viscous lava does not allow gases trapped in the volcano to |
| A. | escape |
| B. | spread |
| C. | condense |
| D. | heat up |
| Answer» B. spread | |
| 218. |
Due to less amount of silica, the basic lava is |
| A. | more viscous than acid lava |
| B. | more light than acid lava |
| C. | less viscous than acid lava |
| D. | less dense than acid lava |
| Answer» D. less dense than acid lava | |
| 219. |
Iceland, one of the world's largest islands, sits on the northern crest of the |
| A. | western ridge |
| B. | eastern ridge |
| C. | mid-Atlantic ridge |
| D. | mid-oceanic ridge |
| Answer» D. mid-oceanic ridge | |