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Consider the following statements:
Assertion (A): Shallow-focus earthquakes may occur along transform boundaries.
Reason (R): Significant energy may be released where crustal plates slide past one another.
Which of the above statements is/are correct?
- a)A is correct, and R is an appropriate explanation of A.
- b)A is correct, but R is not an appropriate explanation of A.
- c)A is correct, but R is incorrect.
- d)Both A and R are incorrect.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following statements: Assertion (A): Shallow-focus earth...
There are three types of plate boundaries: spreading zones, transform faults and subduction zones.
- Earthquakes are located along the normal faults that form the sides of the rift or beneath the floor of the rift.
- However, transform faults are found where plates slide past one another. Shallow-focus earthquakes occur along transform boundaries where two plates move past each other.
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Most Upvoted Answer
Consider the following statements: Assertion (A): Shallow-focus earth...
A: Shallow-focus earthquakes may occur along transform boundaries.
R: Significant energy may be released where crustal plates slide past one another.
Explanation:
Transform boundaries occur where two crustal plates slide past each other horizontally. This movement can result in significant energy release, leading to earthquakes. Let's analyze the given statements:
A is correct: Shallow-focus earthquakes may occur along transform boundaries.
- Transform boundaries are characterized by lateral sliding of crustal plates. As these plates move past each other, they can become locked due to friction. When the stress along the locked boundary exceeds the strength of the rocks, it leads to the sudden release of energy in the form of an earthquake.
- Shallow-focus earthquakes refer to earthquakes that occur within the uppermost layers of the Earth's crust, typically within 70 kilometers of the surface. Transform boundaries can indeed experience shallow-focus earthquakes because the sliding of crustal plates creates stress and potential for energy release.
R is an appropriate explanation of A: Significant energy may be released where crustal plates slide past one another.
- The reason provided in statement R is a valid explanation for statement A. The sliding motion of crustal plates at transform boundaries generates stress and strain along the boundary. When the accumulated stress exceeds the frictional resistance, it results in the release of significant energy, causing earthquakes.
In conclusion, both statements A and R are correct, and R appropriately explains A. Transform boundaries can experience shallow-focus earthquakes due to the significant energy released when crustal plates slide past one another.
R: Significant energy may be released where crustal plates slide past one another.
Explanation:
Transform boundaries occur where two crustal plates slide past each other horizontally. This movement can result in significant energy release, leading to earthquakes. Let's analyze the given statements:
A is correct: Shallow-focus earthquakes may occur along transform boundaries.
- Transform boundaries are characterized by lateral sliding of crustal plates. As these plates move past each other, they can become locked due to friction. When the stress along the locked boundary exceeds the strength of the rocks, it leads to the sudden release of energy in the form of an earthquake.
- Shallow-focus earthquakes refer to earthquakes that occur within the uppermost layers of the Earth's crust, typically within 70 kilometers of the surface. Transform boundaries can indeed experience shallow-focus earthquakes because the sliding of crustal plates creates stress and potential for energy release.
R is an appropriate explanation of A: Significant energy may be released where crustal plates slide past one another.
- The reason provided in statement R is a valid explanation for statement A. The sliding motion of crustal plates at transform boundaries generates stress and strain along the boundary. When the accumulated stress exceeds the frictional resistance, it results in the release of significant energy, causing earthquakes.
In conclusion, both statements A and R are correct, and R appropriately explains A. Transform boundaries can experience shallow-focus earthquakes due to the significant energy released when crustal plates slide past one another.
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Consider the following statements: Assertion (A): Shallow-focus earthquakes may occur along transform boundaries.Reason (R): Significant energy may be released where crustal plates slide past one another.Which of the above statements is/are correct? a) A is correct, and R is an appropriate explanation of A.b) A is correct, but R is not an appropriate explanation of A.c) A is correct, but R is incorrect.d) Both A and R are incorrect.Correct answer is option 'A'. Can you explain this answer?
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