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A scientist is studying the makeup of a crossection of the ground on a plot of land on the Pacific coast. The cross-section is as follows:
The line noted by the X marks earth that was on the surface approximately 20,000 years ago. The law of superposition states that, in cross-sections of the Earth's crust, layers that are closer to the center of the Earth are older than those that are farther away. 
Which layer(s) are older than 20,000 years?
  • a)
    Layer E only
  • b)
    Layer D only
  • c)
    Layer A only
  • d)
    Layers A, B, C, D, and E
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A scientist is studying the makeup of a crossection of the ground on a...
The correct answer is Layer E. It may be tempting to add Layer D to this answer. However, since Layer D also intersects with other layers, we cannot say with certainty that it is older than 20,000 years based on the law of superposition.
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A scientist is studying the makeup of a crossection of the ground on a plot of land on the Pacific coast. The cross-section is as follows:The line noted by the X marks earth that was on the surface approximately 20,000 years ago. The law of superposition states that, in cross-sections of the Earths crust, layers that are closer to the center of the Earth are older than those that are farther away.Which layer(s) are older than 20,000 years?a)Layer E onlyb)Layer D onlyc)Layer A onlyd)Layers A, B, C, D, and ECorrect answer is option 'A'. Can you explain this answer?
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A scientist is studying the makeup of a crossection of the ground on a plot of land on the Pacific coast. The cross-section is as follows:The line noted by the X marks earth that was on the surface approximately 20,000 years ago. The law of superposition states that, in cross-sections of the Earths crust, layers that are closer to the center of the Earth are older than those that are farther away.Which layer(s) are older than 20,000 years?a)Layer E onlyb)Layer D onlyc)Layer A onlyd)Layers A, B, C, D, and ECorrect answer is option 'A'. Can you explain this answer? for ACT 2025 is part of ACT preparation. The Question and answers have been prepared according to the ACT exam syllabus. Information about A scientist is studying the makeup of a crossection of the ground on a plot of land on the Pacific coast. The cross-section is as follows:The line noted by the X marks earth that was on the surface approximately 20,000 years ago. The law of superposition states that, in cross-sections of the Earths crust, layers that are closer to the center of the Earth are older than those that are farther away.Which layer(s) are older than 20,000 years?a)Layer E onlyb)Layer D onlyc)Layer A onlyd)Layers A, B, C, D, and ECorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for ACT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A scientist is studying the makeup of a crossection of the ground on a plot of land on the Pacific coast. The cross-section is as follows:The line noted by the X marks earth that was on the surface approximately 20,000 years ago. The law of superposition states that, in cross-sections of the Earths crust, layers that are closer to the center of the Earth are older than those that are farther away.Which layer(s) are older than 20,000 years?a)Layer E onlyb)Layer D onlyc)Layer A onlyd)Layers A, B, C, D, and ECorrect answer is option 'A'. Can you explain this answer?.
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