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Para-jumble (sentence arrangement): Arrange P–Q–R–S to complete the introduction to palaeobotany, fossils, and geological context. S1 = "Palaeobotany is the study of fossil plants preserved in rocks dating back millions of years." P = "Records of the history of the world are contained in fossils." Q = "Through the ages, plants have evolved from simple to more complex forms." R = "First there were water plants; then land plants appeared during the Paleozoic era." S = "But since fossil remains appear locked in rock layers, they are closely related to the geologist's area of investigation." S6 = "The fossil plants indicate the age of the rock, and also point to facts regarding climate, temperature, and topography." Between S1 and S6, place P–Q–R–S in an informative order that links biology to geology. Choose the correct sequence of P–Q–R–S that completes the paragraph.

Difficulty: Medium

Correct Answer: QRPS

Explanation:

Given data

  • Q: Overview of plant evolution.
  • R: Specific evolutionary sequence (water → land, Paleozoic).
  • P: Fossils preserve Earth's history (linking evolution to the fossil record).
  • S: Because fossils are in rock layers, palaeobotany intersects with geology—setting up S6.

Concept/Approach Start with biological evolution, then connect to the fossil record, and finally to geological interpretation.

Step-by-step reasoning Q sets the high-level evolutionary context. R gives a concrete stage of that evolution. P ties the story to fossils as historical records. S bridges to geology, leading into S6 about dating rocks and inferring paleoclimate.

Final Answer QRPS

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