Quiz 8 Geol
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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show | oxygen
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The most common Precambrian fossils are ________, layered mounds of calcium carbonate. | show 🗑
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show | Cenozoic
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________ are among the most widespread Paleozoic fossils | show 🗑
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show | none of these
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show | Precambrian
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During the early Paleozoic era, South America, Africa, Australia, Antarctica, India, and perhaps China comprised the vast southern continent of ________ | show 🗑
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Which type of bacteria thrive in environments that lack free oxygen | show 🗑
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show | Precambian
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show | protosun
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show | Cenozoic
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show | Permian
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show | hard parts
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show | none of these
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Due to a virtual absence of land plants and certain animals, fossil fuels are notably absent in ________ rocks | show 🗑
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The major source of free oxygen in the atmosphere is from ________ | show 🗑
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The age of Earth is about ________. | show 🗑
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The Precambrian rock record indicates that much of Earth's first free oxygen combined with ________ dissolved in water. | show 🗑
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show | increase in stomach capacity
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As they formed, due to their high temperatures and comparatively weak gravitational fields, which planets were unable to retain appreciable amounts of hydrogen, helium, and ammonia? | show 🗑
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show | 540 million years ago
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During the late Paleozoic, the present-day North America, Europe, western Asia, Siberia, and perhaps China formed the northern continent of ________. | show 🗑
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Most ________ rocks are devoid of fossils, which hinders correlation of rocks. | show 🗑
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show | Cambrian
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show | protoplanet
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The process in which plants use light energy to synthesize food sugars from carbon dioxide is called ________. | show 🗑
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show | Paleozoic
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Each continent contains large "core areas" of Precambrian rocks referred to as _______ | show 🗑
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show | Pangea
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Earth's primitive atmosphere evolved from gases ________. | show 🗑
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The most economically important resource in Cenozoic strata of the Gulf Coast is _______ | show 🗑
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show | oxygen
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Most of Earth's iron ore occurs in middle ________ rocks | show 🗑
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show | reptiles
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show | Precambrian
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During the ________ period, large evaporite deposits of rock salt and gypsum formed in North America. | show 🗑
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The supercontinent of Pangaea began to break up during the ________ era. | show 🗑
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show | Mesozoic
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show | Mesozoic
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show | Pennsylvanian
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show | birds
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show | Devonian
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show | western
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show | prokaryotes
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Following the reptilian extinctions at the close of the Mesozoic, two groups of mammals, the marsupials and ________, evolved. | show 🗑
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show | Jurassic
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show | dinosaurs
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Cenozoic - Phanerozoic - Mesozoic - Paleozoic | show 🗑
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show | T
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We are now living in the Mesozoic era. | show 🗑
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show | F
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show | F
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show | T
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During the early Paleozoic era, the continent of Gondwanaland included North and South America. | show 🗑
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The bodies of our solar system began forming about 5 billion years ago from an enormous cloud of minute rocky fragments and gases. | show 🗑
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show | F
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Earth's original atmosphere, several billion years ago, was similar to the present atmosphere. | show 🗑
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show | T
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show | F
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show | F
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Much of the original free oxygen in the atmosphere combined with iron dissolved in water to become iron oxide. | show 🗑
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show | F
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show | T
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show | F
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show | T
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The fault-block mountains of Nevada and Mexico formed during the Cenozoic era. | show 🗑
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show | T
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show | T
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show | F
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Mammals replaced reptiles as the dominant land animals in the Cenozoic era. | show 🗑
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show | T
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The beginning of the Precambrian era is marked by the appearance of the first life forms with hard parts. | show 🗑
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show | F
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show | T
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Created by:
yphan