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How the Earth Was Made: Driest Place on Earth is the story of the Atacama Desert in northern Chile, a place 50 times
drier than Death Valley! Many unique events conspired to create today's Atacama. It is a story of geologic uplift, wind
and ocean currents, mountain formation, human habitation, and even the potential for life on other planets! Select the
correct multiple-choice response for each question. After the video, write the letter for each answer in the blank at the
beginning of each question. The questions follow the same order as the information presented in the video.
Atacama lies between the Pacific Ocean and which mountains? A) Alps B) Himalayas C) Andes
Atacama is the same size as... A) Iowa B) Manhattan C) Texas
Which town is a "rare green oasis"? A) Chuquicamata B) Quillagua C) El Tatio
The gauge measured how much rainfall? A) < 1mm per yr. B)~ 1 cm per yr. C) > 10 mm per yr.
Atacama lies at which important latitude? A) Tropic of Cancer B) Equator C) Tropic of Capricorn
In the north, the Tropic of Cancer runs through the... A) "vast Sahara" B) Kalahari & Namib C) Atacama
What does a whirling hygrometer measure? A) Rainfall B) Relative humidity C) Temperature
Who studied how air circulates around the earth? A) G. Hadley B) C. Darwin C) A. von Humboldt
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By the time air reaches the two Tropics, it has...
A) shed nearly all of its moisture. B) warmed & gained moisture. C) flowed directly north.
The remote boulders were made of which fragile, easily dissolved mineral? A) Quartz B) Halite C) Gypsum
12.. How was the "awesome age" of the desert rocks shown? A) Analyzing fossils B) Carbon dating C) Helium-3
13.
Atacama is a "staggering".
years old! A) 23 million B) 150 million C) 195 million
14.
How did the "special gypsum" reveal Atacama to be the oldest desert in the world? A) Fossil contents
B) It formed by the evaporation of a shallow, warm tropical sea C) It would have dissolved in heavy rainfall
The gypsum also reveals that, before becoming a desert, Atacama was a seabed. A) True B) False
The volcanoes and geysers of El Tatio are evidence of which process deep beneath the desert?
A) Subduction B) Sea-floor spreading C) Rifting
According to Dr. Godfrey, which crust is sliding beneath the edge of South America?
A) Scotia B) Pacific Ocean C) Patagonian
The crucial depth of 60 mi, where hot, molten rock is thrust upward to form active volcanoes, is called...
A) the asthenosphere. B) a melting zone. C) the Moho.
When were the coastal hills active volcanoes? A) 23 ma* B) 150 ma C) >195 ma
50 million years ago, what was raised by the same process that pushed up the Atacama?
A) The Andes B) The Altiplano C) A volcanic island arc
Today, the melting zone is_inland, and produces volcanoes. A) 60 mi B) 140 mi C) 700 mi
What is the largest open pit copper mine in the world? A) Chuquicamata B) Quillagua C) El Tatio
What causes most of the erosion on the earth's surface? A) Wind B) Volcanism C) Water
On average, Atacama is hotter than Death Valley in California. A) True B) False
Who first described the Atacama penguins? A) G. Hadley B) C. Darwin C) A. von Humboldt
What explained the huge variety of marine life at Atacama? A) The water was 20° colder than expected
B) The growth of large blooms of plankton C) Minerals enrichment due to coastal erosion
27._____. The cold Humboldt Current comes all the way up from... A) Greenland. B) Antarctica. C) Iceland.
28.
which prevents coastal rain from
Hot, dry air prevents the cold, coastal air from rising and creates
reaching the desert. A) an anticyclone B) an inversion layer C) a jet stream
In other deserts, storms bring heavy rain and... A) wind. B) annual blooms. C) flash floods.
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How the Earth Was Made: Driest Place
on Earth Video Questions
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B
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At the equator, moisture rich air... A) forms an inversion. B) sinks. C) rises.
drivend