Description : Which of the following pairs of minerals are difficult to tell apart because both are always dark in color and almost equally hard? w) muscovite and orthoclase x) muscovite and quartz y) hornblende and talc z) hornblende and augite
Last Answer : ANSWER: Z -- HORNBLENDE AND AUGITE
Description : Which of these pairs of minerals are always found in granites? w) muscovite and calcite x) quartz and orthoclase y) hornblende and talc z) augite and magnetite
Last Answer : ANSWER: X -- QUARTZ AND ORTHOCLASE
Description : The principal mineral in most sand beaches is w) quartz x) orthoclase y) magnetite z) muscovite
Last Answer : ANSWER: W -- QUARTZ
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
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
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
Description : Of the following minerals, the one most resistant to both chemical and mechanical weathering is: w) calcite x) muscovite y) hornblende z) quartz
Last Answer : ANSWER: Z -- QUARTZ
Description : Which of the following minerals is noted for its one perfect cleavage? w) calcite x) muscovite y) quartz z) pyrite
Last Answer : ANSWER: X -- MUSCOVITE
Description : Which of the following is the mineral name for ordinary salt? w) biotite x) calcite y) halite z) dolomite
Last Answer : ANSWER: Y -- HALITE
Description : The mineral halite is: w) potassium chloride x) sodium chloride y) calcium chloride z) calcium bromide
Last Answer : ANSWER: X -- SODIUM CHLORIDE
Description : Most cave deposits form from which of the followin minerals? w) hematite x) calcite y) quartz z) none of these
Last Answer : ANSWER: X -- CALCITE
Description : Orthoclase is what number on Moh's hardness scale? w) 4 x) 5 y) 6 z) 7
Last Answer : ANSWER: Y -- 6
Description : The hydrolysis of orthoclase results in the formation of: w) shale x) kaolin y) lime z) hydrochloric acid
Last Answer : ANSWER: X -- KAOLIN
Description : The most common mineral found in igneous rock is: w) feldspar x) olivine y) muscovite z) fluorite
Last Answer : ANSWER: W -- FELDSPAR
Description : North American Indians used this mineral of volcanic origin to make tips for arrows: w) obsidian x) quartz y) flint z) pumice
Last Answer : ANSWER: W -- OBSIDIAN
Description : What is the chemical formula for quartz? w) CaCO-3 x) SiO-2 y) Fe-2O-3 z) none of these
Last Answer : ANSWER: X -- SiO-2
Description : Which of the following reasons explains why quartz cannot be identified by its color alone? w) Its color is too faint. x) It has no color. y) It exists in a variety of colors. z) Its color fades.
Last Answer : ANSWER: Y -- IT EXISTS IN A VARIETY OF COLORS
Description : When shale weathers, it forms mostly: w) clay x) quartz y) soluble carbonates z) slate
Last Answer : ANSWER: W -- CLAY
Description : Carbonic acid is extremely active in the chemical weathering of: w) feldspar x) quartz y) carbon z) quartzite
Description : An agate is a form of what mineral? w) magnetite x) feldspar y) quartz z) copper
Last Answer : ANSWER: Y -- QUARTZ
Description : What is the name of the white clay which has been used for thousands of years in the fabrication of ceramic bodies? Is it: w) Talc x) Kaolin y) Feldspar z) Quartz
Description : Which of the following materials is the hardest? w) calcite x) silicon carbide y) topaz z) quartz
Last Answer : ANSWER: X -- SILICON CARBIDE
Description : The black sand of the Hawaiian Islands is composed of which of the following? w) dark limestone x) quartz y) gypsum z) basalt
Last Answer : ANSWER: Z -- BASALT
Description : Which of the following is a metamorphic rock? w) sandstone x) granite y) quartz z) marble
Last Answer : ANSWER: Z -- MARBLE
Description : Which of the following minerals is a source of lead? w) Bauxite x) Hematite y) Malachite z) Galena
Last Answer : ANSWER: Z -- GALENA
Description : The oxygen in the earth's atmosphere was probably produced by which of the following? w) volcanos x) photosynthetic organisms y) radioactive minerals z) meteors
Last Answer : ANSWER: X -- PHOTOSYNTHETIC ORGANISMS
Description : Which physical phenomenon or principle is most often applied in the search for petroleum reservoirs? w) magnetic field distortions x) electromagnetic radiation y) natural radioactive decay of minerals z) acoustic wave transmission and reflection
Last Answer : ANSWER: Z -- ACOUSTIC WAVE TRANSMISSION AND REFLECTION
Description : Which physical phenomenon or principle is most often applied in the search for petroleum reservoirs? w) gravitational attraction x) magnetic field distortions y) natural radioactive decay of minerals z) acoustic wave transmission and reflection
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
Description : Igneous rocks that form from magma are known as: w) minerals x) granite y) intrusive rocks z) gneiss (pron: nice)
Last Answer : ANSWER: Y -- INTRUSIVE ROCKS
Description : An example of a rock whose minerals have been crushed into thin sheets or bands is: w) shale x) schist y) conglomerate z) granite
Last Answer : ANSWER: X -- SCHIST
Description : The oldest rocks that contain abundant fossils are: w) Precambrian x) Paleozoic y) Mesozoic z) Cenozoic
Last Answer : ANSWER: X -- PALEOZOIC
Description : "Fool's gold" is a common name for this mineral: w) halite x) cinnabar y) magnetite z) pyrite
Last Answer : ANSWER: Z -- PYRITE
Description : Pangaea is the name of a former continent that included: w) all the continents x) only Europe and Asia y) only South America and Africa z) only North and South America
Last Answer : ANSWER: W -- ALL THE CONTINENTS
Description : What mineral is the most dense? w) hematite x) cinnabar y) marcasite z) rhodochrosite
Last Answer : ANSWER: X -- CINNABAR
Description : Which of the following mountain ranges was formed during the Mesozoic era? w) Rocky Mountains x) Cascades y) Appalachian z) Sierra Nevada
Last Answer : ANSWER: Z -- SIERRA NEVADA
Description : Sulfuric acid aerosols from the eruption of Mt. Pinatubo reduced the rate of global warming last year. They also contributed to the record size of: w) acid rainfalls in Europe x) the anchovy catch off Peru y) the ozone hole over Antarctica z) fish kills in the Amazon River
Last Answer : ANSWER: Y -- THE OZONE HOLE OVER ANTARCTICA
Description : Cloud droplets unite most easily to form raindrops in clouds containing which of the following substances? w) ozone x) plant pollen y) carbon tetrachloride z) large salt crystals
Last Answer : ANSWER: Z -- LARGE SALT CRYSTALS
Description : Which of the following is an average number of inches of snow equal to one inch of rain? w) 1 inch x) 5 inches y) 10 inches z) 25 inches
Last Answer : ANSWER: Y -- 10 inches
Description : When the difference in the temperature of the wet-bulb thermometer and dry-bulb thermometer is large, what does it indicate about the air? w) it is very dry x) it is nearly saturated y) it is very warm z) it is very cold
Last Answer : ANSWER: W -- IT IS VERY DRY
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
Description : On which of the following does the capacity of a kilogram of air for holding water depend? w) the air pressure x) the air temperature y) the dust content of the air z) the ions in the air
Last Answer : ANSWER: X -- THE AIR TEMPERATURE
Description : What is considered to be the approximate difference in average temperature between the "little ice age" and today? w) 1 to 3 degrees centigrade x) 5 to 8 degrees centigrade y) 10 to 12 degrees centigrade z) 15 to 20 degrees centigrade
Last Answer : ANSWER: W -- 1 TO 3 DEGREES CENTIGRADE
Description : What form of runoff is water that flows down a slope within the upper layers of the soil rather than on top of them? w) interflow x) extraflow y) endoflow z) detrital runoff
Last Answer : ANSWER: W -- INTERFLOW
Description : When does the air cool most rapidly? Is it during w) a cloudy day x) a cloudy night y) a sunny day z) a clear night
Last Answer : ANSWER: Z -- A CLEAR NIGHT
Description : The approximate average yearly rainfall in centimeters for the United States is: w) 25 centimeters x) 50 centimeters y) 75 centimeters z) 100 centimeters
Last Answer : ANSWER: Y -- 75 CENTIMETERS
Description : Valleys formed by glaciers always have which of the following characteristics? w) U-shaped cross sections x) straight courses y) uniform slopes z) bedrock floors
Last Answer : ANSWER: W -- U-SHAPED CROSS SECTIONS
Description : When the front of a glacier is stationary for a long time, the glacier will do which of the following? w) form many crevasses x) melt away y) not erode its bed z) build a large terminal moraine
Last Answer : ANSWER: Z -- BUILD A LARGE TERMINAL MORAINE
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
Description : The largest single component, by weight, in the average American landfill is: w) toxic waste x) diapers y) newspapers z) pizza boxes
Last Answer : ANSWER: Y -- NEWSPAPERS