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GEOGRAPHY 101 Earth Science EXAM #3 Fall, 2005 Multiple (1.5 points each) Choose the best answer and circle it or simply fill in the blank. What is the most abundant gas in the atmosphere? If you are using a sling psychrometer and the two temperature readings are the same, what can you can conclude about relative humidity? Clouds that resemble thin wispy fibers are called: cumulus clouds cirrus clouds stratus clouds low clouds The earth’s greenhouse effect is necessary for our survival. The earth’s greenhouse effect is stronger when there is more __________________ in the atmosphere. Another name for specific humidity is: The Coriolis Effect on earth causes objects in the northern hemisphere to bend to the _________________ of their path of motion. Globular individual cloud masses that are often described as having a cauliflower or cotton ball structure are called: cumulus clouds cirrus clouds stratus clouds dry clouds The change of state from a gas to a liquid is referred to as: If the air temperature is 25OC and the dew point is 25OC, then the relative humidity would be The temperature at which a parcel of air will be completely saturated is called the______________________ temperature In the northern hemisphere, the winds associated with a low pressure system blow: clockwise toward the center clockwise away from the center counterclockwise toward the center counterclockwise away from the center High pressure systems are usually associated with: descending air rising air rainy weather cloudy weather Low pressure systems are usually associated with: descending air rising air clear weather deserts Polar regions generally experience: low pressure high pressure cloudy weather rainy weather An air mass from the Gulf of Mexico is called a ____ air mass. cP cT mP mT A cT air mass is: cold and dry cold and wet warm and dry warm and wet An mP air mass is: cold and dry cold and wet warm and dry warm and wet On a weather map, ______________ fronts are shown by a line with triangular points on one side. Which of the following is considered to be a boundary between two different air masses? warm front cold front both A and B none of the above The dome of sea water that comes ashore when a hurricane hits the coast is called a ________________________ Hybrid Electric vehicles use ______ to generate electricity for later use. hydrogen fuel cells forward motion during braking solar panels a gasoline engine True - False Circle the T for true and F for false (1 point each). T F If the temperature rises and the amount of moisture in the air remains unchanged, the relative humidity will increase. T F Low pressure areas characteristically have winds blowing toward their center. T F According to your textbook, chemical companies worldwide have been banned from selling the refrigerant compound that releases ozone-depleting chlorofluorocarbons (CFC’s) into the atmosphere. FILL-INS (one point each) Air pressure exists at the earth’s surface due to __________________ The earth’s atmosphere is warmest at the surface of the earth because _________________________________________________ _________________________________________________ The wind blows because: _________________________________________________ Using the relative humidity table provided, calculate the following (1/2 point each): dry-bulb temperure = 69F wet-bulb temperature = 61F relative humidity = ________ % _____________ dry-bulb temperure = 58F wet-bulb temperature = 47F relative humidity = ________ % _____________ dry-bulb temperure = 85F wet-bulb temperature = 69F relative humidity = ________ % Use this table to fill in the blanks below (1/4 point for each blank). Temperature (F) _____________ Grams of Water per kg of air (potential) -40 - - - - - - - - - - - - - - - - -22 - - - - - - - - - - - - - - - - -4 - - - - - - - - - - - - - - - - 14 - - - - - - - - - - - - - - - 32 - - - - - - - - - - - - - - - 41 - - - - - - - - - - - - - - - 50 - - - - - - - - - - - - - - - 59 - - - - - - - - - - - - - - - 68 - - - - - - - - - - - - - - - 77 - - - - - - - - - - - - - - - - 86 - - - - - - - - - - - - - - - - 95 - - - - - - - - - - - - - - - - 104 - - - - - - - - - - - - - - - - - 0.1 0.3 0.75 2 3.5 5 7 10 14 20 26.5 35 47 Temperature (F) _____________ Water Vapor Actual Max Capacity Relative Humidity ______________ A. 59 5g / kg ____ g / kg ____ % B. 77 2g / kg ____ g / kg ____ % C. 95 7g / kg ____ g / kg ____ % D. 41 2g / kg ____ g / kg ____ % What is the dew point for each of the four conditions above? A. _______ F B. _______ F C. _______ F D. _______ F Define Geography (1 point) _________________________________________________________________ _________________________________________________________________ On the global circulation model (next page), please do the following: Place an arrow on the tip of each of the angled lines to indicate the direction of surface winds. (4 points) Place an arrow on the tip of each of the circulation cells on the right to indicate rising or falling air. (3 points) Circle either High or Low to indicate high or low pressure at each of the seven locations. (1.75 points) On the following diagram, match the names in the list with their appropriate location. Some of the items in the list will not be used. (3.5 points) Equatorial Highs Equatorial Lows Sub-Tropical Highs Sub-Tropical Lows Polar Highs Polar Lows Sub-Polar Highs Sub-Polar Lows SHORT ANSWER The SC4 Veggie Car is better for the environment than a regular car. The reason for this has something to do with the carbon cycle. What is the reason? (3 points) _________________________________________________________ _________________________________________________________ _________________________________________________________ Identify one reason why hydrogen fuel cell vehicles are not being produced by the major automakers. (2 points) _________________________________________________________ _________________________________________________________ ESSAY QUESTIONS Describe the monsoons of India. Why do they receive so much rain during part of the year and so little rain during the rest of the year? A diagram may be helpful, but is not necessary. (8 points) Describe a mid-latitude cyclone. Please draw and describe a sequence of diagrams showing the life of a mid-latitude cyclone. How does a mid-latitude cyclone end? (8 points) EXTRA CREDIT (one point each) What is the latitude and longitude of Port Huron? _______________________________________________________ What is the declination of the sun today (to within one degree)? _______________________________________________________ 1 out of 5 = 20% 2 out of 5 = 40% 3 out of 5 = 60% 4 out of 5 = 80% 5 out of 5 = 100% 1 out of 10 = 10% 2 out of 10 = 20% 3 out of 10 = 30% 4 out of 10 = 40% 5 out of 10 = 50% 6 out of 10 = 60% 7 out of 10 = 70% 8 out of 10 = 80% 9 out of 10 = 90% 10 out of 10 = 100% 1 out of 20 = 5% 2 out of 20 = 10% 3 out of 20 = 15% 4 out of 20 = 20% 5 out of 20 = 25% 6 out of 20 = 30% 7 out of 20 = 35% 8 out of 20 = 40% 9 out of 20 = 45% 10 out of 20 = 50% 11 out of 20 = 55% 12 out of 20 = 60% 13 out of 20 = 65% 14 out of 20 = 70% 15 out of 20 = 75% 16 out of 20 = 80% 17 out of 20 = 85% 18 out of 20 = 90% 19 out of 20 = 95% 20 out of 20 = 100% 7 out of 35 = 20% 14 out of 35 = 40% 21 out of 35 = 60% 28 out of 35 = 80% 35 out of 35 = 100%