A) Among the most polluted in the world B) Rapidly deteriorating due to local industry C) Average compared to other national parks D) Some of the cleanest in the United States
A) Offshore drilling B) Coal-fired power plants C) Nuclear power stations D) Solar farms
A) Summer B) Fall C) Spring D) Winter
A) 160 miles B) 210 miles C) 100 miles D) 50 miles
A) 210 miles B) 130 miles C) 160 miles D) 100 miles
A) Radiation and heavy metals B) Carbon monoxide and methane C) Ozone, mercury, and lead D) Sulfates, soils, and organics
A) Forest fire smoke B) Decomposing vegetation C) Urban emissions and copper smelters D) Volcanic activity
A) 1990 B) 2005 C) 1996 D) 1999
A) Ban all vehicles within the park B) Increase tourism through air quality marketing C) Restore visibility to natural background levels by 2064 D) Completely eliminate all industrial emissions
A) 1997 B) 2019 C) 2011 D) 2009
A) Increased visibility due to higher temperatures B) 90% annual average reduction in SO2 C) Total elimination of all nitrate emissions D) Complete closure of the plant
A) It installed solar panels B) It was shut down C) It converted to natural gas D) It expanded its capacity
A) To generate electricity B) To clear land for new hiking trails C) To improve soil fertility for tourism D) To reduce potential for severe forest fires
A) Vehicle emissions and forest fires B) Sulfur deposits C) River evaporation D) Mining waste
A) Near the Pacific Ocean B) Above the canyon rim C) Within the canyon itself D) In the nearby urban centers
A) Proximity to the city of Tucson B) Distance from the ocean C) Ocean currents D) Elevation
A) The Inner Gorge B) The forested peaks C) The South Rim D) The North Rim
A) Three times B) Once C) Twice D) Four times
A) Pacific storms B) Winter cyclonic activity C) The North American Monsoon D) The Gulf Stream
A) 8 inches B) 144 inches C) 60 inches D) 16 inches
A) 8 inches B) 60 inches C) Less than 16 inches D) 27 inches
A) 1,000 feet B) 5,000 feet C) 2,500 feet D) 8,000 feet
A) Hypothermia B) Motion sickness C) Frostbite in summer D) Seasickness
A) Park gate signs B) Social media posts C) Tourist brochures D) National Weather Service website
A) 1990 B) 1919 C) 1903 D) 1974
A) 110 °F B) 105 °F C) 95 °F D) 100 °F
A) -20 °F B) -30 °F C) -10 °F D) 0 °F
A) South Rim B) Colorado River banks C) North Rim D) Inner Gorge
A) Evaporation rate B) Aquifer depth C) Surface tension D) Permeability
A) Siltstone B) Sand C) Clay D) Shale
A) Aquifers B) Aquitards C) Fault lines D) Karst zones
A) Unconfined aquifer B) Permeable aquifer C) Surface aquifer D) Confined aquifer
A) Karst aquifer B) Confined aquifer C) Unconfined aquifer D) Aquitard
A) Muav Limestone B) Coconino Sandstone C) Temple Butte Formation D) Redwall Limestone
A) Sandstone aquifer B) Unconfined aquifer C) Karst aquifer D) Surface aquifer
A) Three B) Seven C) Five D) Ten
A) Nearly 20,000 years B) 1,000 years C) 100 years D) 6 years
A) Snowmelt from San Francisco Peaks B) Local groundwater pumping C) River water infiltration D) Direct rainfall on the canyon floor
A) Deep crustal aquifer B) C-aquifer C) Confined aquifer D) R-aquifer
A) Coconino plateau B) Kaibab plateau C) Grand plateau D) Colorado plateau
A) Colorado River B) Rio Grande C) Snake River D) Mississippi River
A) Arizona B) New Mexico C) Utah D) Nevada
A) Franklin D. Roosevelt B) George Washington C) Abraham Lincoln D) Theodore Roosevelt
A) Hernán Cortés B) Juan Ponce de León C) García López de Cárdenas D) Francisco Vásquez de Coronado
A) 1605 B) 1776 C) 1540 D) 1492
A) The Great Unconformity B) The Supai Group C) The Colorado Plateau D) The Inner Gorge
A) Coconino Sandstone B) Grand Canyon Supergroup C) Vishnu Schist D) Kaibab Limestone
A) Differential erosion B) Glacial movement C) Volcanic activity D) Tectonic shifting
A) The Pueblo people B) The Navajo C) The Havasupai D) The Hualapai
A) Cohonina B) Sinagua C) Ancestral Puebloans D) Navajo
A) Ancient spirits B) Canyon dwellers C) Enemy or alien ancestors D) First people
A) Around 1100 CE B) Around 1425 CE C) Around 1200 BCE D) Around 500 CE
A) Cohonina B) Southern Paiutes C) Ancestral Puebloans D) Sinagua
A) Hualapai B) Southern Paiutes C) Hopi clans D) Navajo
A) 16th century B) 15th century C) 11th century D) 13th century
A) A sipapu B) The Four Corners C) The Colorado River D) A mountain peak
A) Eastern side B) Southern side C) Northern side D) Western side
A) Lees Ferry B) Desert View C) Black Canyon D) Lake Powell
A) John Wesley Powell B) Joseph R. Walker C) Edward Fitzgerald Beale D) James Ohio Pattie
A) Jacob Hamblin B) Frank M. Brown C) Brigham Young D) Harrison Pearce
A) A wagon road B) A railroad line C) The gold deposits D) A water canal
A) Colorado B) Cibola C) Whitewall D) Explorer
A) John Strong Newberry B) Robert Brewster Stanton C) Joseph Ives D) John Wesley Powell
A) 1889 B) 1908 C) 1869 D) 1857
A) They drowned in rapids B) They were murdered C) They died of starvation D) They left on a raft
A) 1879 B) 1908 C) 1894 D) 1919
A) Hopi B) Havasupai C) Shivwits D) Hualapai
A) John Wesley Powell B) Joseph Ives C) Francisco Vazquez de Coronado D) Edward Fitzgerald Beale
A) November 28, 1903 B) February 26, 1919 C) January 11, 1908 D) November 28, 1906
A) February 26, 1919 B) January 11, 1919 C) November 28, 1906 D) January 11, 1908
A) Ralph H. Cameron B) Woodrow Wilson C) William W. Bass D) Theodore Roosevelt
A) Mary Colter B) James Simpson Emmett C) Charles Spencer D) Louis Boucher
A) 2008 B) 1963 C) 1996 D) 1919
A) Air tour overflight noise B) High cost of fuel C) Lack of tourists D) Overpopulation of park staff
A) Pine B) Cactus C) Oak D) Tamarisk
A) Maintenance of trails B) A massive wildfire C) Extreme drought D) Illegal mining activity
A) David Rust & Mary Colter B) John Hance & William Bass C) Emery & Ellsworth Kolb D) John Doyle Lee & Emma Lee French
A) Alice Hance B) Mary Colter C) Elizabeth Bass D) Emma Lee French
A) 9.3% B) 16.5% C) 2.1% D) 30%
A) 1960 B) 2019 C) 1926 D) 1916
A) 24-mile steel pipeline B) 16-mile copper pipeline C) 500,000-gallon plastic pipeline D) 16-mile aluminum pipeline
A) Increased rainfall B) Increased snowpack C) Improved water quality D) Land subsidence
A) 1,737 B) 2,500 C) 1,000 D) 8,000
A) 64 B) 167 C) 1,737 D) 195
A) A dozen B) Sixty-three C) One hundred D) Ten
A) Twenty percent B) Ten percent C) Fifty percent D) Eleven percent
A) Mojave Desert B) Chihuahuan Desert C) Sonoran Desert D) Great Basin Desert
A) Sonoran Desert B) Chihuahuan Desert C) Mojave Desert D) Great Basin Desert
A) Tassel-eared squirrel B) Coyote C) Bighorn sheep D) Mule deer
A) One-half B) One-third C) Double D) The full amount
A) Alpine meadow B) Ponderosa pine C) Riparian wetland D) Sonoran Desert vegetation
A) 1,737 B) 195 C) 167 D) 64
A) 167 B) 1,737 C) 64 D) 195
A) 63 B) 12 C) 167 D) 11
A) Humpback chub B) Red-spotted toad C) Canyon tree frog D) Leopard frog
A) 18 B) 11 C) 33 D) 26
A) Raccoon B) Coyote C) Ringtail D) Bald eagle
A) 10 B) 33 C) 50 D) 41
A) Coyote B) Mountain lion C) Bobcat D) Gray fox
A) Upper Hudsonian B) Lower Sonoran C) Transition D) Canadian |