Glendale Community College » Oceanography » Ocean 115 - Introduction to Oceanography » Spring 2022

Ocean 115 - Introduction to Oceanography » Spring 2022 » Deserts

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Question #1

What is the driest place on Earth?

A. Death Valley, California

B. Great Sandy Desert, Australia

C. Sahara Desert, North Africa

D. Atacama Desert, Chile

Question #2

How much does it rain here on average per year?

A. A little less than 1 millimeter per year

B. A little less than 1 meter per year

C. A little less than 1 centimeter per year

D. It has never rained here

E. 2-3 meters per year

Question #3

What is the significance of the gypsum bed of boulders?

A. It shows that the land is subsiding

B. It shows there hasn’t been any heavy rain since it formed

C. It shows that magma has upwelled here in the recent past

D. It shows the presence of an ancient ocean

Question #4

What provides the age of the gypsum beds?

A. Thermo luminescence

B. Fossils

C. Radiometric decay rates

D. Greenschist

Question #5

What is the age of the Atacama Desert?

A. 150 million years

B. 225 million years

C. 15 million years

D. 1 million years

E. 50 million years

F. 242-250 million years

Question #6

How old are the extinct coastal zone volcanoes?

A. 225 million years

B. 19 million years

C. 405 million years

D. 195 million years

E. 50 million years

Question #7

When did the Andes first form?

A. 350 million years ago

B. 150 million years ago

C. 5 million years ago

D. 316 million years ago

E. 10 million years ago

F. 50 million years ago

Question #8

How does the copper deposits relate back to the Atacama Desert?

A. The Atacama formed from a massive volcanic eruption and the volcano left the copper in its wake.

B. Copper accumulates as a salt deposit in hot dry locations.

C. It actually does not relate it is just a coincidence

D. Because of the lack of rain fall, there is no way means to rust or erode the copper.

Question #9

What is the temperature difference between Atacama and Death Valley?

A. 20 degrees

B. 35 degrees

C. 40 degrees

D. 30 degrees

E. 10 degrees

F. 15 degrees

Question #10

How does the Humboldt Current make the Atacama Desert so dry?

A. The current comes from the equator, bringing cold water that creates a cold fog, then hot air moves above it, and this prevents air flow making it near impossible to rain in Atacama Desert.

B. The current comes from Antarctica, bringing warm water that dries out preventing rain

C. The current blocks any storms from moving in off the ocean into the landmass.

D. It brings cold water from Antarctica that creates a cold fog, then hot air moves above it, and this prevents air flow making it near impossible to rain in Atacama Desert.

Question #11

What happens in the Mojave Desert when it rains?

A. Volcanic eruption

B. Nothing there is so little rain to begin with

C. It is so hot all the water evaporates before it hits the ground

D. Flash floods

E. The sudden impact causes earthquakes

Question #12

How does Evenstar determine the age of the rocks in the Atacama Desert?

A. How much Helium 3 is inside pyroxenes

B. How much Argon and Neon is present in the granites

C. Radiometric Carbon 14

D. How much Potassium 40 is inside orthoclase feldspar

Question #13

How long have the oldest boulders been at their current position?

A. 3,000 years

B. 117 million years

C. 57 million years

D. 23 million years

E. 2 million years

F. 167 million years

Question #14

What is the same age as these boulders?

A. The Humboldt Current

B. The California Current

C. The Andes Mountains

D. The Torval Mountains

E. The Philippines

Question #15

The rain shadow effect relates back to?

A. Rivers

B. Lakes

C. Oceans

D. Mountains

Question #16

How old is the grass in the nest?

A. over 16,000 years old

B. 19 million years old

C. over 119,000 years old

D. over 11,000 years old

E. 100 years old

Question #17

What did NASA scientists find in 2005?

A. An unknown species of kangaroo rat

B. A green micro-organisms living in a rock

C. A source of uranium

D. A meteorite impact

Question #18

What is the only source of water?

A. Waste from airplanes

B. Cold night time temperatures

C. Salt

D. Animal urine

Question #19

What can salt due to this water source?

A. It blocks water from entering the desert

B. It extracts water vapor from the atmosphere and sucks it into the rock

C. It limits the flow of surface water

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