WX 201 UPDATED ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS COMPLETE STUDY GUIDE

WX 201 UPDATED ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE

●● Permanent gasses in the atmosphere
Answer: Oxygen (O2) , Nitrogen (N2) , Nobel Gasses


●● Characteristics of a variable gas
Answer: Concentration is changing ; sources and sinks are not consistent


●● Characteristics of a permanent gas
Answer: Concentration in atmosphere remains constant ; sources and
sinks consistent


●● Examples of green house gasses
Answer: CH4 , CO2 , CFCs , O3


●● Why are scientists predicting global warming?
Answer: The concentration of greenhouse gasses in the atmosphere has
been rising significantly since industrial revolution


●● What causes the ozone hole?

, Answer: CFCs (chlorofluorocarbons) ; found in aerosols


●● What are the implications of ozone depletion?
Answer: Decreased absorption of harmful UV radiation


●● Density
Answer: mass/volume


●● Pressure
Answer: force / area


●● What equation relates density, pressure, and temperature
Answer: Ideal gas law ; P∝ DT


●● What is used to measure density, pressure, and temperature?
Answer: Weather balloons


●● How do altimeters work?
Answer: Aneroid barometer inside measures pressure and infers your
altitude


●● Standard lapse rate