NDSU GEOL 106 EXAM 3 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
in the ocean; on the land - CORRECT ANSWER - Banded iron formations are thought to
have formed ________ , whereas Red Beds are thought to have formed ________ .
banded iron formations - CORRECT ANSWER - Most of Earth's iron ores come from
________ .
It had less oxygen. - CORRECT ANSWER - How did the atmosphere of the Archean and
early Proterozoic differ from Earth's present day atmosphere?
passive - CORRECT ANSWER - During the Proterozoic eon, sandstone-carbonate shale
assemblages become common, indicating that ________ margins had become common.
Proterozoic; Proterozoic - CORRECT ANSWER - The first continental red beds were
deposited during the ________ eon, and passive continental margins became common during the
________ eon.
soft; late - CORRECT ANSWER - Ediacaran fauna refer primarily to ________ -bodied
animals that appeared during the ________ Proterozoic.
ophiolites - CORRECT ANSWER - The presence of ________ provides evidence that the
present style of plate tectonics was operating during the Paleoproterozoic.
pegmatities - CORRECT ANSWER - Some Proterozoic ________ have been mined for
gemstones, tin, lithium, and micas, and some of the world's largest known mineral crystals.
rifting and opening of ocean basin - CORRECT ANSWER - In a complete Wilson cycle,
which event occurs first?
, worms - CORRECT ANSWER - During the Proterozoic organisms belonging to the
domain Eukarya became more and more abundant. Which organisms have eukaryotic cells?
two; tillite - CORRECT ANSWER - During the Proterozoic organisms belonging to the
domain Eukarya became more and more abundant. Which organisms have eukaryotic cells?
equatorial; removed - CORRECT ANSWER - Neoproterozoic glacial deposits are
widespread, possibly due to a snowball Earth. This may have been triggered by the near
________ position of all of the continents, and accelerated weathering that would have ________
large amounts of carbon dioxide gas from the atmosphere and resulted in global cooling.
cratons; orogens - CORRECT ANSWER - Ancient ________ sutured along ________
formed the large landmass Laurentia, which was made primarily of Greenland and North
America.
Rodinia and Pannotia - CORRECT ANSWER - Which supercontinents existed during the
Proterozoic?
but at a slower rate - CORRECT ANSWER - The crust-forming processes that produced
granite - gneiss complexes and greenstone belts in the Archean continued into the Proterozoic,
________ .
an energy source - CORRECT ANSWER - For abiogenesis to occur, what must be
present?
shields - CORRECT ANSWER - Vast areas of exposed ancient rocks are found on
continental ________ .
gold - CORRECT ANSWER - Vast areas of exposed ancient rocks are found on
continental ________ .
ACTUAL Exam Questions and CORRECT
Answers
in the ocean; on the land - CORRECT ANSWER - Banded iron formations are thought to
have formed ________ , whereas Red Beds are thought to have formed ________ .
banded iron formations - CORRECT ANSWER - Most of Earth's iron ores come from
________ .
It had less oxygen. - CORRECT ANSWER - How did the atmosphere of the Archean and
early Proterozoic differ from Earth's present day atmosphere?
passive - CORRECT ANSWER - During the Proterozoic eon, sandstone-carbonate shale
assemblages become common, indicating that ________ margins had become common.
Proterozoic; Proterozoic - CORRECT ANSWER - The first continental red beds were
deposited during the ________ eon, and passive continental margins became common during the
________ eon.
soft; late - CORRECT ANSWER - Ediacaran fauna refer primarily to ________ -bodied
animals that appeared during the ________ Proterozoic.
ophiolites - CORRECT ANSWER - The presence of ________ provides evidence that the
present style of plate tectonics was operating during the Paleoproterozoic.
pegmatities - CORRECT ANSWER - Some Proterozoic ________ have been mined for
gemstones, tin, lithium, and micas, and some of the world's largest known mineral crystals.
rifting and opening of ocean basin - CORRECT ANSWER - In a complete Wilson cycle,
which event occurs first?
, worms - CORRECT ANSWER - During the Proterozoic organisms belonging to the
domain Eukarya became more and more abundant. Which organisms have eukaryotic cells?
two; tillite - CORRECT ANSWER - During the Proterozoic organisms belonging to the
domain Eukarya became more and more abundant. Which organisms have eukaryotic cells?
equatorial; removed - CORRECT ANSWER - Neoproterozoic glacial deposits are
widespread, possibly due to a snowball Earth. This may have been triggered by the near
________ position of all of the continents, and accelerated weathering that would have ________
large amounts of carbon dioxide gas from the atmosphere and resulted in global cooling.
cratons; orogens - CORRECT ANSWER - Ancient ________ sutured along ________
formed the large landmass Laurentia, which was made primarily of Greenland and North
America.
Rodinia and Pannotia - CORRECT ANSWER - Which supercontinents existed during the
Proterozoic?
but at a slower rate - CORRECT ANSWER - The crust-forming processes that produced
granite - gneiss complexes and greenstone belts in the Archean continued into the Proterozoic,
________ .
an energy source - CORRECT ANSWER - For abiogenesis to occur, what must be
present?
shields - CORRECT ANSWER - Vast areas of exposed ancient rocks are found on
continental ________ .
gold - CORRECT ANSWER - Vast areas of exposed ancient rocks are found on
continental ________ .
