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EOSC 114 -7 Questions with Detailed
Verified Answers
Question:
mass extinction
Ans: risis that affects life right across the planet from the deepest oceans to
the highest mountains
Question: biosphere
Ans: a thin layer of life that exists on the surface of the planet that interacts
with the hydrosphere (oceans, lakes and rivers), the atmosphere, and the
lithosphere (the Earth's crust)
Question: geologists and paleontologists measure the passage of geological
time in what?
Ans: in the geological rock record
Question: stratigraphy
Ans: the study of rock layers
Question: The principle of superposition
Ans: Steno states that in a succession of layered rocks, the rock layer at the
bottom of the pile will be the oldest and the layer at the top the youngest
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Question: Principle of faunal succession
Ans: Smith in 1799 who recognized that strata of like age can be recognized
by the fossils they contain even if the outcrops of strata are separated by large
distances geographically. Using the appearance and disappearance of fossils
to subdivide geological time is the science of biostratigraphy. Each fossil
species is said to have a range through geological time.it exists in the
geological record from the point that it evolves to the point that it becomes
extinct
Question: Who examined the remains of mammoths in Europe concluding
they were a once living species that had become extinct?
Ans: George Cuvier (1769 - 1832)
Question: When did scientists started to conclude that the Earth is ancient
and had undergone much change throughout its history?
Ans: During the late 1700s and 1800s
Question: What were fossils used for to construct a geological time scale?
Ans: To correlate between different regions and characterize particular
periods of Earth's history
Question: Who of the following believed the Earth to be around 6,000 years
old?
Ans: Ussher (1581 - 1665)
Question: What are the the subdivisions of time called that divide the Earth's
4.6 billion years?
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Ans: 1.Eons Precambrian and Phanerozoic) 2. Eras (Archean, Proterozoic,
Paleozoic, Mesozoic, and Cenozoic), and Periods (from the oldest, Cambrian,
to the most recent, the Quaternary)
Question: What is the period called where there was an extraordinary
proliferation of fossils at the base of the Phanerozoic?
Ans: in a period called the Cambrian
Question: Dinosaurs are part of Which period and sub period?
Ans: Phanerozoic, divided into Mesozoic
Question: The Dinosaur time period happened how many years ago?
Ans: 251-65 Million years ago
Question: What is the order of geological time scale from now till dinosaur
period?
Ans: Under "Cenozoic" 1. Neogene 2. Paleogene
Question: What is an 'Era'? And what does it represent?
Ans: a grouping of geological periods. times when there has been a major
change in the Earth's biosphere
Question: What is the 'Phanerozoic'?
Ans: the emergence of creatures with hard parts
Question: What are the Eras (most recent-oldest) ?
Ans: Phanerozoic and Precambrian (which ended 543 mill years ago)
EOSC 114 -7 Questions with Detailed
Verified Answers
Question:
mass extinction
Ans: risis that affects life right across the planet from the deepest oceans to
the highest mountains
Question: biosphere
Ans: a thin layer of life that exists on the surface of the planet that interacts
with the hydrosphere (oceans, lakes and rivers), the atmosphere, and the
lithosphere (the Earth's crust)
Question: geologists and paleontologists measure the passage of geological
time in what?
Ans: in the geological rock record
Question: stratigraphy
Ans: the study of rock layers
Question: The principle of superposition
Ans: Steno states that in a succession of layered rocks, the rock layer at the
bottom of the pile will be the oldest and the layer at the top the youngest
, Page | 2
Question: Principle of faunal succession
Ans: Smith in 1799 who recognized that strata of like age can be recognized
by the fossils they contain even if the outcrops of strata are separated by large
distances geographically. Using the appearance and disappearance of fossils
to subdivide geological time is the science of biostratigraphy. Each fossil
species is said to have a range through geological time.it exists in the
geological record from the point that it evolves to the point that it becomes
extinct
Question: Who examined the remains of mammoths in Europe concluding
they were a once living species that had become extinct?
Ans: George Cuvier (1769 - 1832)
Question: When did scientists started to conclude that the Earth is ancient
and had undergone much change throughout its history?
Ans: During the late 1700s and 1800s
Question: What were fossils used for to construct a geological time scale?
Ans: To correlate between different regions and characterize particular
periods of Earth's history
Question: Who of the following believed the Earth to be around 6,000 years
old?
Ans: Ussher (1581 - 1665)
Question: What are the the subdivisions of time called that divide the Earth's
4.6 billion years?
, Page | 3
Ans: 1.Eons Precambrian and Phanerozoic) 2. Eras (Archean, Proterozoic,
Paleozoic, Mesozoic, and Cenozoic), and Periods (from the oldest, Cambrian,
to the most recent, the Quaternary)
Question: What is the period called where there was an extraordinary
proliferation of fossils at the base of the Phanerozoic?
Ans: in a period called the Cambrian
Question: Dinosaurs are part of Which period and sub period?
Ans: Phanerozoic, divided into Mesozoic
Question: The Dinosaur time period happened how many years ago?
Ans: 251-65 Million years ago
Question: What is the order of geological time scale from now till dinosaur
period?
Ans: Under "Cenozoic" 1. Neogene 2. Paleogene
Question: What is an 'Era'? And what does it represent?
Ans: a grouping of geological periods. times when there has been a major
change in the Earth's biosphere
Question: What is the 'Phanerozoic'?
Ans: the emergence of creatures with hard parts
Question: What are the Eras (most recent-oldest) ?
Ans: Phanerozoic and Precambrian (which ended 543 mill years ago)
