ESSENTIALS OF GEOLOGY MARSHAK
SEVENTH EDITION REVIEW SHEET ALL
CHAPTERS 2026 QUESTIONS ANSWERS
GRADED A+
⩥Geologist.
Answer: Scientists who study the Earth
⩥Lithosphere.
Answer: 100-150-km-thick semi-rigid shell consisting of the crust and
the uppermost part of the underlying mantle. Earthquakes.
⩥Plates.
Answer: Large cracks in lithosphere separated into discrete pieces which
move very slowly relative to one another
⩥Theory of Plate Tectonics.
Answer: The movement of plates and its consequences
⩥Earth System.
Answer: All interconnecting aspects and realms of Earth materials and
processes
, ⩥Age of Earth.
Answer: 4.54 Billion years
⩥Geologic Time.
Answer: The whole of Earth's long history
⩥Geologic Time Scale.
Answer: Earth's history divided into intervals or portions
⩥Gravity.
Answer: The pull that one mass exerts on another
⩥Cosmology.
Answer: The study of the overall structure and history of the Universe
⩥The Universe.
Answer: All of space and the matter within it
⩥Strata.
Answer: Layers of sedimentary rocks (beds included)
SEVENTH EDITION REVIEW SHEET ALL
CHAPTERS 2026 QUESTIONS ANSWERS
GRADED A+
⩥Geologist.
Answer: Scientists who study the Earth
⩥Lithosphere.
Answer: 100-150-km-thick semi-rigid shell consisting of the crust and
the uppermost part of the underlying mantle. Earthquakes.
⩥Plates.
Answer: Large cracks in lithosphere separated into discrete pieces which
move very slowly relative to one another
⩥Theory of Plate Tectonics.
Answer: The movement of plates and its consequences
⩥Earth System.
Answer: All interconnecting aspects and realms of Earth materials and
processes
, ⩥Age of Earth.
Answer: 4.54 Billion years
⩥Geologic Time.
Answer: The whole of Earth's long history
⩥Geologic Time Scale.
Answer: Earth's history divided into intervals or portions
⩥Gravity.
Answer: The pull that one mass exerts on another
⩥Cosmology.
Answer: The study of the overall structure and history of the Universe
⩥The Universe.
Answer: All of space and the matter within it
⩥Strata.
Answer: Layers of sedimentary rocks (beds included)