Wx 201

WX 201 - Exam 1 Questions and Answers Nitrogen and Oxygen The most abundant gases in the earth's atmosphere by volume are... Water vapor Which of the following is considered a variable gas in Earth's atmosphere? Water The only substance near Earth's surface that is found naturally in the current atmosphere as a solid, liquid, and a gas is... Pressure Which weather element ALWAYS decreases as we climb upward in the atmosphere? Air temperature The Earth's atmosphere ...

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...

Weather Exam 2- WX 201 ERAU Questions and Answers Radar Reflectivity The amount of energy received by the radar that is scattered back to it, usually by precipitation particles Attenuation Reduction of radar power by absorption of radiation by targets WSR-88D Weather Surveillance Radar 1988 Doppler dopplar radar specialized radar that can detect precipitation and movement of small particles and can approximate wind speed Aircraft Radar Low power(300-500w), 3cm wavelengt...

Quiz 1 WX 201 with correct Answers Graded A+ At night, when the weather is extremely cold and dry, atmospheric pressure in the trophosphere - increases with increasing altitude. - remains constant with increasing altitude. - stays the same, then drops suddenly. - first increases, then decreases with increasing altitude. - decreases with increasing altitude. decreases with increasing altitude. Which of the following is MOST likely associated with fair weather? - a cold front - ...

Exam 2, WX 201 Questions and Answers Graded A+ The heat index (HI) is used by the National Weather Service, and combines ____ with ____ to determine an apparent temperature. - dew point temperature; mixing ratio - air temperature; specific humidity - actual vapor pressure; specific humidity - air temperature; relative humidity - mixing ratio; saturation vapor pressure air temperature; relative humidity The initial stage of an ordinary thunderstorm is the - dissipating stage - m...

ERAU WX-201 Test 1 with correct Answers Graded A+ Lapse rate The rate at which temperature decreases with an increase in altitude. Wind direction the direction from which the wind is blowing a variable gas in the Earth's atmosphere is water vapor Troposhere The atmosphere layer closest to Earths surface in which we live Air molecules are held near the earth's surface by ____. Gravity The Temperature of the tropopause is much _____ than the temperature at Earth's...