WX 201 - Exam 1 Questions and Answers

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 is divided into layers based on changes in the vertical profile of... Troposphere Almost all of Earth's weather occurs in the... Ozone The gas that absorbs most of the harmful ultraviolet radiation in the stratosphere is... Increases with increasing height In a temperature inversion, air temperature... The condition of the atmosphere at a particular time and place The word "weather" is defined as... The direction from which the wind is blowing Wind direction is... Temperature Which measurement indicates the average speed of air molecules? Heat capacity The amount of heat energy required to bring about a change in temperature in a substance is called the... Convection The vertical exchange of heat is called... Latent heat of condensation The heat energy released when water vapor changes to a liquid is called... Temperature What determines the type (wavelength) and amount of radiation that an object emits? Ultraviolet radiation What type of energy has a wavelength shorter than that of violet light? Infrared wavelengths Earth emits radiation with greatest intensity at... 30 The combined albedo of Earth and the atmosphere is approximately _____ percent. Lower that at present Without the atmospheric greenhouse effect, the average surface temperature would be... The atmospheres average temperature would change If the amount of energy lost by the Earth to space each year were not approximately equal to that received, Circulation of heat by the atmosphere and oceans Although the polar regions radiate away more heat energy than they receive by insolation in the course of a year, they are prevented from becoming progressively colder each year by the... The angle at which sunlight reaches Earth Our seasons are caused by... one-half At any given time, _____ of Earth is illuminated by the Sun. In the mid-latitudes of the Northern Hemisphere On the summer solstice, the highest position of the noonday Sun is located... Winter solstice In the Northern Hemisphere, which day has the fewest hours of daylight? time of maximum solar radiation and the time of maximum temperature The lag in daily temperature refers to the time lag between the... Around sunrise The daily minimum temperature is usually observed... At the ground