Earth Science Trivia: MCQ Exam Quiz!
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Questions and Answers
- 1.
It is the outermost layer of the Earth where life exists.
- A.
Mantle
- B.
Outer Core
- C.
Crust
- D.
Inner Core
Correct Answer
C. CrustExplanation
The crust is the outermost layer of the Earth where life exists. It is the thinnest layer, making up only about 1% of the Earth's volume. The crust is composed of solid rock and is divided into two types: oceanic crust, which is found beneath the oceans, and continental crust, which forms the continents. The crust is where all living organisms, including humans, reside. It is also where most geological processes, such as earthquakes and volcanoes, occur.Rate this question:
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- 2.
It is a semisolid, rocky, and very hot layer and it is below the crust.
- A.
Mantle
- B.
Outer Core
- C.
Crust
- D.
Inner Core
Correct Answer
A. MantleExplanation
The given description states that the layer is semisolid, rocky, and very hot, which matches the characteristics of the mantle. Additionally, it is mentioned that this layer is below the crust, further supporting the identification of the mantle as the correct answer.Rate this question:
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- 3.
It is the only layer of the Earth that is liquid.
- A.
Crust
- B.
Mantle
- C.
Outer Core
- D.
Inner Core
Correct Answer
C. Outer CoreExplanation
The outer core is the correct answer because it is the only layer of the Earth that is liquid. The crust is the outermost layer of the Earth, but it is solid. The mantle is located beneath the crust and is mostly solid, although it can flow slowly over long periods of time. The inner core is the deepest layer of the Earth and is solid due to the immense pressure. Therefore, the outer core is the only layer that is in a liquid state.Rate this question:
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- 4.
It began as one huge mass of land and which has seven separate continents.
- A.
Panthalassa
- B.
Permian
- C.
Cretaceous
- D.
Pangaea
Correct Answer
D. PangaeaExplanation
Pangaea is the correct answer because it refers to the supercontinent that existed millions of years ago when all the continents were joined together as one landmass. This aligns with the statement in the question that mentions one huge mass of land and seven separate continents, indicating the presence of Pangaea before the continents separated and formed the current landmasses.Rate this question:
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- 5.
It pushes plates toward each other or pull them apart.
- A.
Driving Forces
- B.
Resisting Forces
- C.
Drag Force
- D.
Slab resistance
Correct Answer
A. Driving ForcesExplanation
The given correct answer is "Driving Forces". Driving forces are forces that cause motion or change in an object's position. In this context, the driving force pushes plates towards each other or pulls them apart, which results in the movement or separation of the plates.Rate this question:
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- 6.
It marks the boundary between the mantle and the outer core.
- A.
Mohorovicic Discontinuity
- B.
Lehman Discontinuity
- C.
Gutenberg Discontinuity
- D.
Lithosphere
Correct Answer
C. Gutenberg DiscontinuityExplanation
The Gutenberg Discontinuity is the correct answer because it is the boundary between the mantle and the outer core. This boundary is characterized by a significant increase in seismic wave velocity, indicating a change in the composition and density of the Earth's layers. The Gutenberg Discontinuity is an important feature in understanding the structure and dynamics of the Earth's interior.Rate this question:
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- 7.
It help map and characterize the layers of the Earth.
- A.
Seismic Waves
- B.
Body Waves
- C.
Surface Waves
- D.
Love Waves
Correct Answer
A. Seismic WavesExplanation
Seismic waves are a type of energy that travels through the Earth's layers, allowing scientists to map and characterize them. These waves are generated by earthquakes and other seismic events, and they can be classified into two main types: body waves and surface waves. Body waves include P waves and S waves, which travel through the interior of the Earth, while surface waves, such as Love waves, travel along the Earth's surface. By studying the behavior of seismic waves, scientists can gain valuable information about the composition and structure of the Earth's layers.Rate this question:
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- 8.
The outer core is composed of _________
- A.
Solid Iron
- B.
Silica and Alumina
- C.
Molten Nickel and iron
- D.
Basaltic Rocks
Correct Answer
C. Molten Nickel and ironExplanation
The outer core is composed of molten nickel and iron. This is supported by scientific evidence and the understanding of Earth's structure. The outer core is a layer of the Earth located beneath the mantle and surrounding the inner core. It is believed to be in a liquid state due to the high temperatures and pressures found at that depth. The presence of molten nickel and iron in the outer core is crucial for generating Earth's magnetic field through a process called the dynamo effect.Rate this question:
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- 9.
Who proposed an evidence to back up his continental drift theory ?
- A.
Andrija Mohorovicic
- B.
Alfred Wegener
- C.
Edmund Halley
- D.
John William Strutt
Correct Answer
B. Alfred WegenerExplanation
Alfred Wegener proposed evidence to support his continental drift theory. He suggested that the continents were once joined together in a single landmass called Pangaea and gradually drifted apart over time. One of the key pieces of evidence he presented was the fit of the coastlines on different continents, particularly the matching shapes of South America and Africa. Wegener also pointed out similarities in rock formations, fossils, and climate patterns across continents that were separated by vast oceans. His theory laid the foundation for our current understanding of plate tectonics.Rate this question:
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- 10.
It is a layer of the Earth that is responsible for generating the Earth's Magnetic Field.
- A.
Crust
- B.
Mantle
- C.
Outer Core
- D.
Inner Core
Correct Answer
C. Outer CoreExplanation
The outer core is the correct answer because it is the layer of the Earth that is responsible for generating the Earth's magnetic field. The outer core is composed of liquid iron and nickel, and the movement of this molten metal creates electric currents, which in turn generate the magnetic field. This magnetic field is important for protecting the Earth from harmful solar radiation and plays a crucial role in navigation and compass use.Rate this question:
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- 11.
Who proposed the seafloor spreading theory?
- A.
Alfred Wegener
- B.
Harry Hess
- C.
Eduard Suess
- D.
John Tuzo Wilson
Correct Answer
B. Harry HessExplanation
Harry Hess proposed the seafloor spreading theory. This theory suggests that new oceanic crust is formed at mid-ocean ridges and spreads outwards, pushing the older crust aside. This process explains the movement of tectonic plates and the creation of new oceanic crust. Hess's theory revolutionized our understanding of plate tectonics and provided a key piece of evidence for the theory of continental drift.Rate this question:
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- 12.
The Lithosphere is composed of many independent massive slabs of solid rocks called _________.
- A.
Crust
- B.
Continental crust
- C.
Plates
- D.
Oceanic crust
Correct Answer
C. PlatesExplanation
The Lithosphere is composed of many independent massive slabs of solid rocks called plates. These plates are rigid and float on the semi-fluid asthenosphere beneath them. The movement and interactions of these plates at their boundaries are responsible for various geological phenomena such as earthquakes, volcanic activity, and the formation of mountain ranges. The concept of tectonic plates helps explain the dynamic nature of the Earth's surface and how continents and oceans have evolved over millions of years.Rate this question:
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- 13.
Tectonic plates can move between _________ cm per year.
- A.
1-5
- B.
1-8
- C.
1-10
- D.
1-20
Correct Answer
C. 1-10Explanation
Tectonic plates are large pieces of the Earth's lithosphere that float on the semi-fluid asthenosphere beneath them. These plates can move due to the convection currents in the asthenosphere. The given answer, "1-10 cm per year," is correct because tectonic plates typically move at a rate of a few centimeters per year. This movement is responsible for various geological phenomena such as earthquakes, volcanic activity, and the formation of mountain ranges.Rate this question:
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- 14.
A process wherein two plates that move away from each other that create a gap or a rift between them.
- A.
Divergent Plate Boundary
- B.
Convergent Plate Boundary
- C.
Transform Plate Boundary
- D.
Subduction
Correct Answer
A. Divergent Plate BoundaryExplanation
A divergent plate boundary refers to a process where two plates move away from each other, creating a gap or rift between them. This type of boundary is characterized by the formation of new crust as magma rises to fill the gap, leading to the creation of mid-ocean ridges or rift valleys on land. As the plates separate, volcanic activity and earthquakes are common along these boundaries.Rate this question:
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- 15.
It is a region of deformed rocks.
- A.
Orogenic Belt
- B.
Mid-Oceanic
- C.
Seafloor
- D.
Subduction Zone
Correct Answer
A. Orogenic BeltExplanation
An orogenic belt is a region of deformed rocks that has been subjected to intense tectonic activity, such as mountain building. This process occurs when two tectonic plates collide, causing the rocks in the area to be folded, faulted, and uplifted. Orogenic belts are characterized by the presence of folded mountain ranges, thrust faults, and metamorphic rocks. These belts are commonly found at the boundaries between converging tectonic plates, where subduction or collision occurs.Rate this question:
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- 16.
The process where two plates collide in which the denser plates goes beneath the less dense plate called _______.
- A.
Convergence
- B.
Subduction
- C.
Transform
- D.
Divergence
Correct Answer
B. SubductionExplanation
Subduction is the correct answer because it refers to the process where two tectonic plates collide and the denser plate is forced beneath the less dense plate. This occurs at convergent plate boundaries, where one plate is forced into the mantle and undergoes subduction. The other options, convergence, transform, and divergence, do not accurately describe this specific process of one plate going beneath another.Rate this question:
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- 17.
The process where the plates slide against each other in opposite directions.
- A.
Divergence
- B.
Subduction
- C.
Transform
- D.
Convergence
Correct Answer
C. TransformExplanation
The process described in the question, where the plates slide against each other in opposite directions, is known as transform. In a transform boundary, the plates move horizontally past each other, causing friction and often leading to earthquakes. This type of plate boundary is characterized by the absence of crustal material being created or destroyed, unlike in convergence or subduction boundaries. Divergence, on the other hand, refers to plates moving away from each other, while subduction involves one plate being forced beneath another.Rate this question:
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- 18.
The process where two plate slide towards each other and form either a subduction zone or an orogenic belt.
- A.
Divergence
- B.
Subduction
- C.
Transform
- D.
Convergence
Correct Answer
D. ConvergenceExplanation
Convergence refers to the process where two tectonic plates move towards each other. This movement can result in the formation of either a subduction zone, where one plate is forced beneath the other, or an orogenic belt, where the collision of the plates leads to the formation of mountains. Therefore, convergence is the correct answer as it accurately describes the process mentioned in the question.Rate this question:
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- 19.
What is produce when crust buckles up and rocks pile up ?
- A.
Plateau
- B.
Hills
- C.
Volcanoes
- D.
Mountain ranges
Correct Answer
D. Mountain rangesExplanation
When crust buckles up and rocks pile up, it creates a geological formation known as mountain ranges. This process occurs when tectonic plates collide or compress, causing the crust to fold and uplift. The accumulation of rocks and sediments further contributes to the formation of tall and rugged mountain ranges. These landforms are characterized by steep slopes, high peaks, and often serve as natural boundaries between regions. Examples of mountain ranges include the Himalayas, the Andes, and the Rockies.Rate this question:
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- 20.
This theory suggested that as the Earth cooled after its formation, its surface contracted and wrinkled.
- A.
Continental Drift Theory
- B.
Contraction Theory
- C.
Plate tectonic Theory
- D.
Seafloor spreading Theory
Correct Answer
B. Contraction TheoryExplanation
The Contraction Theory suggests that as the Earth cooled down after its formation, its surface contracted and wrinkled. This theory explains the formation of various landforms such as mountains, valleys, and ridges. It proposes that the Earth's crust underwent a process of contraction, causing the surface to fold and buckle. This theory was proposed before the development of the Plate Tectonic Theory, which provides a more comprehensive explanation for the movement of Earth's crust.Rate this question:
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- 21.
It is a suspectible to and very much frequented by volcanism-related geologic activities.
- A.
Bermuda Triangle
- B.
Pacific Ring of fire
- C.
Hawaii
- D.
Pacific Ocean
Correct Answer
B. Pacific Ring of fireExplanation
The Pacific Ring of Fire is the correct answer because it is an area in the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. It is known for its active tectonic plate boundaries and is home to over 75% of the world's active volcanoes. The high frequency of volcanism-related geologic activities in the Pacific Ring of Fire makes it a susceptible and frequented area for such events.Rate this question:
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- 22.
It is the convergent movement of tectonic plates whereby a denser plate is pushed beneath a lighter one.
- A.
Orogenesis
- B.
Subduction
- C.
Earthquake
- D.
Collision
Correct Answer
B. SubductionExplanation
Subduction is the correct answer because it refers to the convergent movement of tectonic plates where a denser plate is pushed beneath a lighter one. This process occurs at subduction zones and is responsible for various geological phenomena, such as the formation of mountain ranges, volcanic activity, and earthquakes. During subduction, the denser oceanic plate is forced beneath the less dense continental plate, leading to the recycling of crustal material and the creation of geological features.Rate this question:
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- 23.
How many volcanoes that lies in the Pacific Ocean?
- A.
458
- B.
452
- C.
432
- D.
421
Correct Answer
B. 452Explanation
There are 452 volcanoes that lie in the Pacific Ocean.Rate this question:
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- 24.
It refers to the shaking of the Earth as a result of breaking or shifting of the rocks of the tectonic plates.
- A.
Tsunami
- B.
Volcanic Eruption
- C.
Earthquake
- D.
Collision
Correct Answer
C. EarthquakeExplanation
The correct answer is earthquake because it refers to the shaking of the Earth caused by the breaking or shifting of tectonic plates. Earthquakes occur when there is a release of energy in the Earth's crust, resulting in seismic waves that can cause the ground to shake. This shaking can lead to the destruction of buildings and infrastructure, as well as pose a threat to human lives. Earthquakes can occur along fault lines or plate boundaries, and their intensity can vary from minor tremors to major quakes that can cause widespread devastation.Rate this question:
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- 25.
This are cracks on the Earths crust.
- A.
Dip slip
- B.
Strike-slip
- C.
Reverse
- D.
Faults
Correct Answer
D. FaultsExplanation
Faults are fractures in the Earth's crust where there has been movement along the rocks on either side. They are typically caused by tectonic forces and can be classified into different types based on the direction of movement. Dip slip faults occur when there is vertical movement along the fault plane, while strike-slip faults involve horizontal movement. Reverse faults, on the other hand, occur when the rocks on one side of the fault are pushed up and over the rocks on the other side. Therefore, faults are the correct answer as they are indeed cracks on the Earth's crust caused by tectonic forces.Rate this question:
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- 26.
It refers to the process of forming mountains and mountain ranges.
- A.
Orogenesis
- B.
Convergence
- C.
Dome
- D.
Folded
Correct Answer
A. OrogenesisExplanation
Orogenesis refers to the process of forming mountains and mountain ranges. This process occurs when tectonic plates collide or converge, causing the crust to buckle and fold. The intense pressure and deformation result in the uplift and formation of mountains. Orogenesis can also involve the formation of domes, which are circular or elongated structures where rocks have been pushed upward. Therefore, the correct answer is orogenesis as it directly relates to the formation of mountains and mountain ranges through tectonic plate collisions and folding of the Earth's crust.Rate this question:
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- 27.
What are produced when a landmass is lifted during plate convergence ?
- A.
Valley and hills
- B.
Plateau and mountains
- C.
Mountains and mountain ranges
- D.
Volcanoes and valley
Correct Answer
C. Mountains and mountain rangesExplanation
When a landmass is lifted during plate convergence, it results in the formation of mountains and mountain ranges. This occurs when two tectonic plates collide and push against each other, causing the crust to buckle and fold, leading to the uplift of land and the creation of mountains. Over time, the continued movement and compression of the plates can form extensive mountain ranges.Rate this question:
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- 28.
The point within the Earth where the tectonic plate rocks starts to break and where seismic energy is first released is called ________.
- A.
Focus
- B.
Epicenter
- C.
Wave fronts
- D.
Fault plane
Correct Answer
A. FocusExplanation
The correct answer is focus. The focus is the point within the Earth where the tectonic plate rocks start to break and where seismic energy is first released. It is the origin of an earthquake and is located beneath the Earth's surface. The seismic waves radiate outwards from the focus, causing the shaking and damage associated with earthquakes.Rate this question:
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- 29.
It is everyone's responsibility.
- A.
Alertness
- B.
Preparedness
- C.
Drop,cover and hold
- D.
To be safe
Correct Answer
B. PreparednessExplanation
Preparedness refers to being ready and equipped to handle a situation or event. In the context of the given statement, it suggests that being prepared is the responsibility of everyone. This implies that individuals should take proactive measures to anticipate and mitigate potential risks or emergencies. By being prepared, individuals can increase their safety and minimize the impact of unforeseen events.Rate this question:
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- 30.
It is a result from the upwarping of tectonic plates and are not accompanied by the collision of plate boundaries.
- A.
Volcanic Mountain ranges
- B.
Erosion-formed mountain rnages
- C.
Dome Mountain Ranges
- D.
Folded Mountains
Correct Answer
C. Dome Mountain RangesExplanation
Dome mountain ranges are formed by the upwarping of tectonic plates without the collision of plate boundaries. This upwarping causes the rock layers to buckle and fold, creating a dome-shaped structure. Unlike volcanic mountain ranges, which are formed by volcanic activity, or folded mountains, which are formed by the collision of tectonic plates, dome mountain ranges are a result of the gradual uplift and deformation of the Earth's crust. Erosion-formed mountain ranges are not relevant to this explanation.Rate this question:
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Mar 22, 2023Quiz Edited by
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Aug 01, 2015Quiz Created by
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