Which of the following is the oldest period of tim lasting from the beginnings of the earth to approximately 570 million year ago? w) Precambrian x) Pleistocene (pron: ply-sto-sin) y) Miocene (pron: my-o-sin) z) Jurassic

Which of the following is the oldest period of tim lasting from the beginnings of the earth to approximately 570 million year ago? w) Precambrian x) Pleistocene (pron: ply-sto-sin) y) Miocene (pron: my-o-sin) z) Jurassic
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ANSWER: W -- PRECAMBRIAN
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On the Phanerozoic (pron: fan-eh-reh-zO-ik) time scale, which of the following geologic periods occurred approximately 500 to 570 million years ago? Is it: w) Cambrian x) Ordovician (pron: ord-eh-vish-en) y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-reh-zO-ik) time scale, which of the following geologic periods occurred approximately 500 to 570 million years ago? Is it: w) Cambrian x) Ordovician (pron: ord-eh-vish-en) y) Carboniferous z) Silurian

Last Answer : ANSWER: W -- CAMBRIAN

On the Phanerozoic (pron: fan-eh-row-zo-ick) Time Scale, which of the following geologic periods occurred approximately 395 to 430 million years ago? Is it: w) Jurassic (pron: ju-ras-ick) x) Permian y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-row-zo-ick) Time Scale, which of the following geologic periods occurred approximately 395 to 430 million years ago? Is it: w) Jurassic (pron: ju-ras-ick) x) Permian y) Carboniferous z) Silurian

Last Answer : ANSWER: Z -- SILURIAN

On the Phanerozoic (pron: fan-eh-reh-zO-ik) Time Scale, which of the following geologic periods occurred approximately 225 to 280 million years ago? Is it: w) Jurassic x) Permian y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-reh-zO-ik) Time Scale, which of the following geologic periods occurred approximately 225 to 280 million years ago? Is it: w) Jurassic x) Permian y) Carboniferous z) Silurian

Last Answer : ANSWER: X -- PERMIAN

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Description : The Miocene, Eocene and Paleocene epoches belong t what geologic period on the Phanerozoic Time Scale? Is it the: w) Devonian x) Permian y) Triassic (pron: try-as-ick) z) Tertiary

Last Answer : ANSWER: Z -- TERTIARY 

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Description : Which of the following time periods describes the age of the coal deposits of the Eastern United States? w) Jurassic and Cambrian x) Mississippian and Pennsylvanian y) Pliocene and Miocene z) none of these

Last Answer : ANSWER: X -- MISSISSIPPIAN AND PENNSYLVANIAN

The disappearance of the dinosaurs also marks the end of which geological era? w) Precambrian x) Cambrian y) Mesozoic (pron: mez-ah-zo-ik) z) Cenozoic (pron: see-nah-zo-ik)

Description : The disappearance of the dinosaurs also marks the end of which geological era? w) Precambrian x) Cambrian y) Mesozoic (pron: mez-ah-zo-ik) z) Cenozoic (pron: see-nah-zo-ik)

Last Answer : ANSWER: Y -- MESOZOIC

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Description : The oldest rocks that contain abundant fossils are: w) Precambrian x) Paleozoic y) Mesozoic z) Cenozoic

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Of the following four geologic periods, which is the oldest? w) Devonian x) Silurian y) Permian z) Jurassic

Description : Of the following four geologic periods, which is the oldest? w) Devonian x) Silurian y) Permian z) Jurassic

Last Answer : ANSWER: X -- SILURIAN

On the Phanerozoic time scale, which of the following geologic periods occurred approximately 65 to 136 million years ago? Is it: w) Cambrian x) Ordovician y) Carboniferous z) Cretaceous

Description : On the Phanerozoic time scale, which of the following geologic periods occurred approximately 65 to 136 million years ago? Is it: w) Cambrian x) Ordovician y) Carboniferous z) Cretaceous

Last Answer : ANSWER: Z -- CRETACEOUS

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Description : Angiosperms developed during the: w) Precambrian period x) Cenozoic era y) Paleozoic era z) Mesozoic era

Last Answer : ANSWER: Z -- MESOZOIC ERA

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Description : Recent discoveries of ancient cratering near the Yucatan Peninsula support the theory that a meteor or cometary impact may have resulted in mass extinctions of species on Earth about 65 million years ago. ... is that impact thought to have occurred? w) Permian x) Triassic y) Jurassic z) Cretaceous 

Last Answer : ANSWER: Z -- CRETACEOUS 

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Description : Which geologic period does not belong in the Mesozoic era? w) Permian x) Cretaceous y) Triassic z) Jurassic

Last Answer : ANSWER: W -- PERMIAN

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Description : The longest era was the w) Mesozoic x) Precambrian y) Cenozoic z) Paleozoic

Last Answer : ANSWER: X -- PRECAMBRIAN

Fine parallel lines, or striations, are most likel to be seen on a cleavage surface of which of the following minerals? w) quartz x) orthoclase y) hornblende z) plagioclase (pron: play-gee-o-klase)

Description : Fine parallel lines, or striations, are most likel to be seen on a cleavage surface of which of the following minerals? w) quartz x) orthoclase y) hornblende z) plagioclase (pron: play-gee-o-klase)

Last Answer : ANSWER: Z -- PLAGIOCLASE

In geological studies, arkose contains which of th following minerals which gives it a reddish color? w) orthoclase x) calcite y) aragonite (pron: a-rag-o-nite) z) quartz

Description : In geological studies, arkose contains which of th following minerals which gives it a reddish color? w) orthoclase x) calcite y) aragonite (pron: a-rag-o-nite) z) quartz

Last Answer : ANSWER: W -- ORTHOCLASE

Which of the following time periods includes part of the geologic range of dinosaurs? w) Mississippian x) Devonian y) Jurassic z) none of the above

Description : Which of the following time periods includes part of the geologic range of dinosaurs? w) Mississippian x) Devonian y) Jurassic z) none of the above

Last Answer : ANSWER: Y -- JURASSIC 

Of the following four geologic periods, which is the most recent? w) Devonian x) Silurian y) Permian z) Jurassic

Description : Of the following four geologic periods, which is the most recent? w) Devonian x) Silurian y) Permian z) Jurassic

Last Answer : ANSWER: Z -- JURASSIC

In which epoch Man appeared on earth? a. Oligocene b. Miocene c. Pleistocene d. Pliocene

Description : In which epoch Man appeared on earth? a. Oligocene b. Miocene c. Pleistocene d. Pliocene

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Description : How much of the sun's total radiation actually reaches the earth? Is it one part in w) 2,000 x) 200,000 y) 2 million z) 2 billion

Last Answer : ANSWER: Z -- ONE PART IN 2 BILLION 

Which of the following areas is closest to the total surface area of the earth in square kilometers? w) 500 million x) 500 billion y) 500 thousand z) 5 billion

Description : Which of the following areas is closest to the total surface area of the earth in square kilometers? w) 500 million x) 500 billion y) 500 thousand z) 5 billion

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Large streams that enter a standing body of water produce which of the following geological features at their mouths? w) deltas x) load casts y) anticlines z) sync (pron: sink)

Description : Large streams that enter a standing body of water produce which of the following geological features at their mouths? w) deltas x) load casts y) anticlines z) sync (pron: sink)

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Description : Cordaites (pron: kor-day-i-tees) were the ancestor of one of the following. Were they primitive: w) amphibians x) cone-bearing trees y) snakes z) sharks

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Description : An igneous rock which is commonly black, has a glassy texture, and has a conchoidal (pron: kong-koid-al) fracture is whic of the following? w) pelite (pron: pel-ite) x) calcite y) obsidian z) none of the above

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Last Answer : ANSWER: Y -- GRASSLANDS

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Description : On a topographic map, lines that indicate water depth are termed: w) isogonic lines (pron: eye-seh-gone-ik) x) bathymetric lines (pron: bath-i-meh-trik) y) isopachs z) none of these

Last Answer : ANSWER: X -- BATHYMETRIC LINES 

Which of the following minerals is a source of copper? w) Bauxite (pron: box-ite) x) Hematite y) Malachite z) Galena

Description : Which of the following minerals is a source of copper? w) Bauxite (pron: box-ite) x) Hematite y) Malachite z) Galena

Last Answer : ANSWER: Y -- MALACHITE

Apatite is what number on Moh's (pron: moes: rhyme with toes) hardness scale? w) 1 x) 3 y) 5 z) 7

Description : Apatite is what number on Moh's (pron: moes: rhyme with toes) hardness scale? w) 1 x) 3 y) 5 z) 7

Last Answer : ANSWER: Y -- 5

Deposits that form when the ice in a glacier melts are called: w) drifts x) dunes y) veins z) cirques (pron: serks)

Description : Deposits that form when the ice in a glacier melts are called: w) drifts x) dunes y) veins z) cirques (pron: serks)

Last Answer : ANSWER: W -- DRIFTS

A lake or pond community is also known as a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thick) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Description : A lake or pond community is also known as a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thick) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Last Answer : ANSWER: Y -- LENTIC COMMUNITY

An open-ocean community is also called a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thik) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Description : An open-ocean community is also called a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thik) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

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Description : Igneous rocks that form from magma are known as: w) minerals x) granite y) intrusive rocks z) gneiss (pron: nice)

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Which of the following minerals is NOT a silicate? w) orthoclase x) muscovite y) augite (pron: aw-jIt) z) magnetite

Description : Which of the following minerals is NOT a silicate? w) orthoclase x) muscovite y) augite (pron: aw-jIt) z) magnetite

Last Answer : ANSWER: Z -- MAGNETITE

Which of the following terms is used to describe the appearance of a mineral in transmitted light? Is it: w) diaphaneity (pron: die-ah-fah-na-ah-tee) x) translucence y) opaqueness z) porosity

Description : Which of the following terms is used to describe the appearance of a mineral in transmitted light? Is it: w) diaphaneity (pron: die-ah-fah-na-ah-tee) x) translucence y) opaqueness z) porosity

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Carbon dioxide is an important greenhouse gas. What is the current rate in parts per million per year of atmospheric increase of this gas? w) 0.15 ppm per year (parts per million) x) 1.5 ppm per year y) 15 ppm per year z) 150 ppm per year

Description : Carbon dioxide is an important greenhouse gas. What is the current rate in parts per million per year of atmospheric increase of this gas? w) 0.15 ppm per year (parts per million) x) 1.5 ppm per year y) 15 ppm per year z) 150 ppm per year 

Last Answer : ANSWER: X -- 1.5 PPM PER YEAR 

What is considered to be the oldest lake in North America? w) Mono Lake, CA x) Lake Superior, MI y) The Great Salt Lake, UT z) Crater Lake, OR

Description : What is considered to be the oldest lake in North America? w) Mono Lake, CA x) Lake Superior, MI y) The Great Salt Lake, UT z) Crater Lake, OR

Last Answer : ANSWER: W -- MONO LAKE, CA

Continents have three major features. The oldest areas of each continent are the: w) folded mountains x) stable platforms y) mountain cores z) shields

Description : Continents have three major features. The oldest areas of each continent are the: w) folded mountains x) stable platforms y) mountain cores z) shields

Last Answer : ANSWER: Z -- SHIELDS

If all the Earth's ice melted, the increase in sea level would be approximately: w) 100 meters x) 2 meters y) 70 meters z) 20 meters

Description : If all the Earth's ice melted, the increase in sea level would be approximately: w) 100 meters x) 2 meters y) 70 meters z) 20 meters

Last Answer : ANSWER: Y -- 70 METERS

The horse latitude which occurs at approximately 30o - 35o north is also known as the: w) doldrums x) calms of Cancer y) calms of Capricorn z) trough of the Pacific

Description : The horse latitude which occurs at approximately 30o - 35o north is also known as the: w) doldrums x) calms of Cancer y) calms of Capricorn z) trough of the Pacific

Last Answer : ANSWER: X -- CALMS OF CANCER

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Description : The concentration of carbon dioxide in the atmosphere is in the range of: w) 1-10 parts per million x) 10-100 parts per million y) 100-1000 parts per million z) 1000-10,000 parts per million

Last Answer : ANSWER: Y -- 100-1000 PARTS PER MILLION (the exact number is 350 ppm as of the time of this article)

The continental shelves comprise what percentage o the Earth's total land area? w) 38 percent x) 28 percent y) 18 percent z) 8 percent

Description : The continental shelves comprise what percentage o the Earth's total land area? w) 38 percent x) 28 percent y) 18 percent z) 8 percent

Last Answer : ANSWER: Y -- 18 PERCENT

Which of the following does NOT form as a result o a low level temperature inversion? w) smog x) sleet y) tornado z) fog

Description : Which of the following does NOT form as a result o a low level temperature inversion? w) smog x) sleet y) tornado z) fog

Last Answer : ANSWER: Y -- TORNADO 

All of the following are TRUE of the Paricutin volcano except w) its slopes are steep x) it is a lava cone y) it is located in Mexico z) it was built over a short period of time

Description : All of the following are TRUE of the Paricutin volcano except w) its slopes are steep x) it is a lava cone y) it is located in Mexico z) it was built over a short period of time

Last Answer : ANSWER: X -- IT IS A LAVA CONE

The emergence of land plants is generally accepted as occurring during what period on the geologic time scale: w) Cretaceous x) Triassic y) Permian z) Silurian

Description : The emergence of land plants is generally accepted as occurring during what period on the geologic time scale: w) Cretaceous x) Triassic y) Permian z) Silurian

Last Answer : ANSWER: Z -- SILURIAN

Which of the following names is given to the supercontinent thought to have existed in the Cambrian period? Is it: w) Pangaea x) Afrasia y) Gondwanaland z) Europia

Description : Which of the following names is given to the supercontinent thought to have existed in the Cambrian period? Is it: w) Pangaea x) Afrasia y) Gondwanaland z) Europia

Last Answer : ANSWER: W -- PANGAEA

The lag time between precipitation period and peak discharge period of a river: w) is increased by urbanization x) is decreased by urbanization y) is shorter for a large drainage basin than for a small one z) depends upon the hydraulic heads

Description : The lag time between precipitation period and peak discharge period of a river: w) is increased by urbanization x) is decreased by urbanization y) is shorter for a large drainage basin than for a small one z) depends upon the hydraulic heads

Last Answer : ANSWER: X -- IS DECREASED BY URBANIZATION

During which period, in the earth's history, did MOST dinosaurs become extinct? w) Carboniferous x) Cretaceous y) Quaternary z) Triassic

Description : During which period, in the earth's history, did MOST dinosaurs become extinct? w) Carboniferous x) Cretaceous y) Quaternary z) Triassic

Last Answer : ANSWER: X -- CRETACEOUS

This period in earth history is the earliest subdivision of the Paleozoic Era. Many of the oldest known invertebrate fossils occur in this period, the principal types being trilobites, chitinous brachiopods, and primitive graptolites. Name this period.

Description : This period in earth history is the earliest subdivision of the Paleozoic Era. Many of the oldest known invertebrate fossils occur in this period, the principal types being trilobites, chitinous brachiopods, and primitive graptolites. Name this period. 

Last Answer : ANSWER: CAMBRIAN PERIOD

Biomass energy is w) formed through photosynthesis x) caused by heat due to the large mass of the Earth y) has been used for only a few years z) the predominant source of commercial heat energy in the northern regions of the United States

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Last Answer : ANSWER: W -- FORMED THROUGH PHOTOSYNTHESIS

Which of the following distances in kilometers is closest to the diameter of the earth? w) 750 kilometers x) 2,750 kilometers y) 12,750 kilometers z) 127,500 kilometers

Description : Which of the following distances in kilometers is closest to the diameter of the earth? w) 750 kilometers x) 2,750 kilometers y) 12,750 kilometers z) 127,500 kilometers

Last Answer : ANSWER: Y -- 12,750 KILOMETERS