Q U I Z NO. 7
251. Multiple Choice: A rock
composed of cemented sand and gravel is:
w) shale
x) conglomerate
y) granite
z) marble
ANSWER: X – CONGLOMERATE
252. Multiple Choice: When clay
hardens into rock, it forms:
w) coal
x) limestone
y) shale
z) quartzite
ANSWER: Y – SHALE
253. Multiple Choice: Our sun is
a
w) protostar
x) main-sequence star
y) variable star
z) dwarf star
ANSWER: X -- MAIN-SEQUENCE STAR
254. Multiple Choice: Which geologic period does
not belong in the Mesozoic era?
w) Permian
x) Cretaceous
y) Triassic
z) Jurassic
ANSWER: W – PERMIAN
255. Multiple Choice: What type
of map projection is most appropriate for navigation charts?
w) Conic
x) Mercator
y) Polar
z) Cartesian
ANSWER: X – MERCATOR
256. Multiple Choice: What is
the range of the Mid-Atlantic Ridge?
w) from Cuba to the Azores
x) from Iceland to Antarctica
y) from Cape Hatteras to Gibraltar
z) from Cape Horn to the Cape of Good Hope
ANSWER: X -- FROM ICELAND TO ANTARCTICA
257. Multiple Choice: Fossils
are rarely found in such rocks as:
w) limestone
x) sandstone
y) shale
z) granite
ANSWER: Z – GRANITE
258. Multiple Choice: As we have
seen with Hurricane Andrew, natural forces can cause great loss of human life.
Which of the following natural disasters has resulted in the greatest loss of
human life in a single occurrence?
w) typhoon
x) volcanic eruption
y) earthquake
z) tornado
ANSWER: Y -- EARTHQUAKE (ON JANUARY 23, 1556, 830,000 PEOPLE DIED
IN SHENSI, CHINW)
259. Multiple Choice: The rock
in which ground water is LEAST likely to form caverns is:
w) sandstone
x) limestone
y) salt
z) rock gypsum
ANSWER: W – SANDSTONE
260. Multiple Choice: The
longest era was the
w) Mesozoic
x) Precambrian
y) Cenozoic
z) Paleozoic
ANSWER: X – PRECAMBRIAN
261. Multiple Choice: On the
Richter scale, a magnitude 6 earthquake is how much larger
than a magnitude 4 earthquake?
w) 1.5 times
x) 4 times
y) 15 times
z) 100 times
ANSWER: Z -- 100 TIMES
262. Multiple Choice: The air
around a high pressure area circulates:
w) clockwise in the Northern Hemisphere
x) counterclockwise in the Northern Hemisphere
y) clockwise in the Southern Hemisphere
z) in either direction regardless of hemisphere
ANSWER: W -- CLOCKWISE IN THE NORTHERN HEMISPHERE
263. Multiple Choice: The
principal mineral in most sand beaches is
w) quartz
x) orthoclase
y) magnetite
z) muscovite
ANSWER: W – QUARTZ
264. Multiple Choice: The oldest
rocks that contain abundant fossils are:
w) Precambrian
x) Paleozoic
y) Mesozoic
z) Cenozoic
ANSWER: X – PALEOZOIC
265. Multiple Choice: The
wind-chill index outside is -10 F when the wind blows at 20 mph and the air
temperature is 20 F. To what temperature will a dry object cool when placed outside?
w) 20 F
x) 10 F
y) -10 F
z) -20 F
ANSWER: W -- 20 F
266. Multiple Choice: A geologic
feature called a kimberlite indicates the possibility of thepresence of which
of the following?
w) rubies
x) diamonds
y) sapphires
z) opals
ANSWER: X – DIAMONDS
267. Multiple Choice: Which of
the following minerals is a source of lead?
w) Bauxite
x) Hematite
y) Malachite
z) Galena
ANSWER: Z – GALENA
268. Multiple Choice: Which of
the following is the mineral name for ordinary salt?
w) biotite
x) calcite
y) halite
z) dolomite
ANSWER: Y – HALITE
269. Multiple Choice: The core
of the earth is thought to be composed of which of the following?
w) basalt and granite
x) compressed gases
y) uranium and lead
z) iron and nickel
ANSWER: Z -- IRON AND NICKEL
270. Multiple Choice: Safety
aside, for which of the following reasons is alcohol used in preference to
mercury in a minimum thermometer?
w) Alcohol has a higher boiling point
x) Alcohol has a lower freezing point
y) Alcohol contracts more uniformly
z) Alcohol can be dyed for visibility
ANSWER: X -- ALCOHOL HAS A LOWER FREEZING POINT
271. Multiple Choice: 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
ANSWER: Y -- 12,750 KILOMETERS
272. Multiple Choice: Which of
the following is the approximate ratio of the area of the continents to the
area of the earth's oceans?
w) 2:1
x) 1:1
y) 2:5
z) 1:10
ANSWER: Y -- 2:5
273. Multiple Choice: In geological
studies, the Mohorovicic Discontinuity, commonly called the Moho, is the
boundary between the
w) the mantle and the crust
x) asthenosphere and the mantle
y) mantle and the outer core
z) outer core and the inner core
ANSWER: W -- THE MANTLE AND THE CRUST
274. Multiple Choice: 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
ANSWER: W -- FORMED THROUGH PHOTOSYNTHESIS
275. Multiple Choice: Which
animal is the center of the timber-harvest controversy in the Pacific
Northwest?
w) blackfooted ferret
x) California condor
y) northern spotted owl
z) gray wolf
ANSWER: Y -- NORTHERN SPOTTED OWL
276. Multiple Choice: North
American Indians used this mineral of volcanic origin to make tips for arrows:
w) obsidian
x) quartz
y) flint
z) pumice
ANSWER: W – OBSIDIAN
277. Multiple Choice: The
largest single component, by weight, in the average American landfill is:
w) toxic waste
x) diapers
y) newspapers
z) pizza boxes
ANSWER: Y – NEWSPAPERS
278. Multiple Choice: 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
ANSWER: X -- 1.5 PPM PER YEAR
279. Multiple Choice: 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
ANSWER: Z -- BUILD A LARGE TERMINAL MORAINE
280. Multiple Choice: 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
ANSWER: W -- U-SHAPED CROSS SECTIONS
281. Multiple Choice: The
approximate average yearly rainfall in centimeters for the United States is:
w) 25 centimeters
x) 50 centimeters
y) 75 centimeters
z) 100 centimeters
ANSWER: Y -- 75 CENTIMETERS
282. Multiple Choice: 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
ANSWER: Z -- A CLEAR NIGHT
283. Multiple Choice: 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
ANSWER: W – INTERFLOW
284. Multiple Choice: 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
ANSWER: W -- 1 TO 3 DEGREES CENTIGRADE
285. Multiple Choice: 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
ANSWER: X -- THE AIR TEMPERATURE
286. Multiple choice: 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
ANSWER: W -- MONO LAKE, CA
287. Multiple Choice: 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
ANSWER: W -- IT IS VERY DRY
288. Multiple Choice: 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
ANSWER: Y -- 10 inches
289. Multiple Choice: 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
ANSWER: Z -- LARGE SALT CRYSTALS
290. Multiple Choice: 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
ANSWER: Y -- THE OZONE HOLE OVER ANTARCTICA
291. Multiple Choice: Which of
the following mountain ranges was formed during the Mesozoic era?
w) Rocky Mountains
x) Cascades
y) Appalachian
z) Sierra Nevada
ANSWER: Z -- SIERRA NEVADA
292. What mineral is the most dense?
w) hematite
x) cinnabar
y) marcasite
z) rhodochrosite
ANSWER: X – CINNABAR
293. 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
ANSWER: W -- ALL THE CONTINENTS
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