Wx 201 - Study guides, Class notes & Summaries
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WX 201 Final ERAU Exam Questions and Answers
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WX 201 Final ERAU Exam Questions and Answers 
The Atmosphere 
aerosol (a.k.a. particulates) 
rain, drizzle, fog, snow, ice crystals, cloud droplets 
 
 
Permanent gas 
Nitrogen [N2]=78% 
Oxygen [02]=21% 
Others (Ar, Ne, He, Kr, H)=1% 
 
 
Variable gas 
[H2O] 
-0 to 4% (highly variable) 
-Most abundant variable gas• 
[CO2] 
-0.039% and rising 
[O3] 
-Highly variable, reactive gas 
-Upper atmosphere: protects life from UV light 
-Occurs naturally, absorbs harmful ultraviolet light from sun 
 
 
...
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WX 201 - Exam #1 Questions and Answers
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WX 201 - Exam #1 Questions and Answers
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WX 201- FINAL EXAM QUESTIONS AND ANSWERS
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WX 201- FINAL EXAM QUESTIONS AND ANSWERS
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WX 201 Final Exam Questions and Answers Already Passed
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WX 201 Final Exam Questions and 
 
Answers Already Passed 
 
____ is a condition in which the environmental lapse rate is equal to the dry adiabatic rate. 
Neutral Stability 
 
A geostrophic wind is a wind that results from a balance between the ____ force and the ____ 
force. Coriolis; pressure gradient 
 
A good source region for an air mass would be ____. generally flat areas of uniform 
composition with light surface winds 
 
A lee-side low forms ____. on the downwind side of a mountain 
 
A...
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WX 201 Exam 3 w- HW 16 and 17 Questions and Answers
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WX 201 Exam 3 w- HW 16 and 17 Questions and Answers 
Due to Hadley cell formation and the Coriolis force in both hemispheres, winds aloft flow 
 
a. easterly 
b. southerly 
c. westerly 
d. randomly 
e. northerly 
C 
 
 
Which air mass woudl show the most dramatic change in both temperature and moisture content as it moves over a large body of very warm water? 
 
a. mA in winter 
b. mP in winter 
c. cP in winter 
d. cT in summer 
e. mT in summer 
C 
 
 
If you are standing directly south of a smo...
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WX 201 Exam #1 Questions and Answers 2024
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WX 201 Exam #1 Questions and Answers
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WX 201 EXAM 2 QUESTIONS AND ANSWERS
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WX 201 EXAM 2 QUESTIONS AND ANSWERS
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Exam 2, WX 201 Questions and Answers
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Exam 2, WX 201 Questions and Answers
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WX 201 - Exam #1 Questions and Answers
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WX 201 - Exam #1 Questions and Answers 
Permanent Gases in the Atmosphere 
Constant concentration in the atmosphere 
78% Nitrogen, 21% Oxygen, 1% Other Gases: Argon, Neon, Helium, Krypton, Hydrogen 
 
 
Variable Gases in the Atmosphere 
The amount/concentration in the atmosphere varies or changes 
Includes: Water Vapor, Carbon Dioxide, Methane, and Ozone 
 
 
Sources 
produce gases 
Ex: decaying plants/animals, volcanoes, photosynthesis 
 
 
Sinks 
deplete (remove) gases 
Ex: soil bacteria, resp...
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ERAU WX-201 Test 1 Questions and Answers 100% Pass
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ERAU WX-201 Test 1 Questions and 
 
Answers 100% Pass 
 
A geostationary satellite takes pictures of one area on Earth as it moves at the same rate as 
Earth's spin 
 
A star much hotter than our sun radiates more energy at _________ wavelengths and appears 
________ shorter 
hotter 
 
a variable gas in the Earth's atmosphere is water vapor 
 
A vertical exchange of heat is called convection 
 
Air molecules are held near the earth's surface by ____. Gravity 
 
Air molecules selectively scatt...
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