Meteorology Final Test 50 Points Multiple Choice: 1. The percentage of oxygen (O) in the atmosphere is: A. less than 1% B. 21% C. 78% D. 99% 2. As the density of air decreases, its pressure___ A. increases B. goes up c. decreases D. doubles 3. Air pressure decreases as altitude ___ A. decreases B. increases C. Stays the same D. none of the above 4. The layer of the atmosphere that we live in is the ___ A. troposphere B. stratosphere C. mesosphere thermosphere 5. The stratosphere helps protect the Earth from too much UV radiation because this layer of the atmosphere contains___ A. ozone B. ions C. carbon dioxide D. water vapor 6. The four layers of the atmosphere are determined according to changes in ___ A. temperature B. Pressure C. humidity D. Oxygen content 7. The correct order of the layers of the atmosphere, from the ground up are: A. troposphere, ionosphere, thermosphere, stratosphere B. thermosphere, mesosphere, stratosphere, troposphere C. stratosphere, thermosphere, troposphere, thermosphere D. troposphere, stratosphere, mesosphere, thermosphere 8. Wind direction is measured with a ___ A. psychrometer B. wind vane C. anemometer D. thermometer 9. We compare the readings of wet-bulb and dry-bulb thermometers to measure A. wind speed B. air pressure C. wind chill D. relative humidity 10. The most abundant permanent gas in the atmosphere is ___ A. oxygen B. carbon dioxide C. nitrogen 11. Liquid water falling to Earth’s surface is known as ___ A. Hail B. precipitation C. Sleet D. water vapor D. Rain 12. The northern lights (aurora borealis) occur in this layer of the atmosphere. A. Troposphere B. Stratosphere C. Thermosphere D. Mesosphere 13. The ______ Effect explains why the global winds curve due to the rotation of the Earth on its axis. A. Tectonic Plate B. Convection C. Coriolis D. Wind 14. The continental Polar (Cp) air mass brings ____ air to our area. A. moist, cold B. moist, warm C. dry, cold D. dry, warm 15. The Maritime Tropical (Mt) air mass brings___ air to our area. A. moist, cold B. moist, warm C. dry, cold D. dry, warm 16. Air pressure is measured with an instrument called a ___ A. barometer B. anemometer C. psychrometer 17. Low air pressure is an indicator of ___ weather. A. hot B. cold C. clear D. thermometer D. cloudy 18. During the day, cool air over the ocean blows toward the beach in a A. land breeze B. high pressure system C. sea breeze D. tsunami 19. Winds travel in the following direction: A. high to low pressure B. low to high pressure C. only up D. always from the west 20. Precipitation that freezes upon contact with an object whose temperature is below 00 Celsius. A. Rain B. sleet C. Snow D. freezing rain 21. Pellets of ice created during a thunderstorm from updrafts. A. Hail B. sleet C. Snow D. freezing rain 22. Rain falling as six sided crystals A. Rain B. sleet C. Snow D. freezing rain Diagram 1: Look at the diagram below showing the Earth’s surface and atmosphere being heated by energy from the sun, with the arrow’s indicating the direction of heat flow. ANSWER Questions 24-26. C A B 23. The arrows labeled with the letter “A” show heat transferred by__ A. Convection B. conduction C. radiation D. none of the above 24. The arrow labeled with the letter “B” show air being heated by the process of: A. radiation B. convection C. conduction D. none of the above 25. The part of the diagram labeled with the letter “C” shows heat transfer by ___ A. convection B. conduction C. radiation D. none of the above 26. Scientists who study the causes of weather and try to predict it are called? A. geologists B. astronomer C. storm chaser D. meteorologist 27. Lines on a weather map joining places with the same air pressure are called ___. A. contour lines B. isotherms C. Isobars D. latitude Diagram 2, 3, 4: Use the diagrams below to answer Questions 27-29. Diagram 2 Diagram 3 Diagram 4 28. Diagram 2 above shows a picture of a/an ___ A. Warm front B. Cold front C. Stationary front D. Occluded front 29. Diagram 3 above shows a picture of a/an ___ A. Warm front B. Cold front C. Stationary front D. Occluded front 30. Diagram 4 above shows a picture of a/an ___ A. Warm front B. Cold front C. Stationary front D. Occluded front 31. Which diagram above outlines the best potential for severe weather. A. Diagram 2 B. Diagram 3 C. Diagram 4 D. None of the above True/False: Read the following statements and then answer A = True OR B = False You and your friends decide to hike up a mountain on a hot, summer day. Dressed in t-shirts and shorts, you head up the mountain. 32. True or False As you climb higher, the temperature becomes warmer. 33. True or False As you cling higher, the concentration of oxygen in the air decreases. 34. True or False As you climb higher, the air pressure becomes lower. 35. True or False To create a tornado, you should collide similar air masses. 36. True or False Hurricanes require warm ocean water to keep them spinning. 37. True or False Hurricanes and tornadoes are measured on a 1-5 scale, where 5 is the most destructive. 38. True or False The Enhanced Fujita and hurricane categories are based on diameter of the storm. Diagram 5: Answer Questions 34-40 using the diagrams and legend below. 39. The temperature in oF at the Helena, Montana weather station is ___. A. 200 B. 41 C. 1020 D. none of the above 40. The cloud cover in % at the Boston, Massachusetts weather station is ___. A. 52 B. 181 C. 25 D. 75 41. The wind speed in mph at the Phoenix Arizona weather station is ___. A. 3-8 B. 9-14 C. 15-20 D. 45 42. The barometric pressure in millibars at the Miami, Florida weather station is ___. A. 78 B. 198 C. 1019.8 D. none of the above 43. Which direction is the wind coming from in San Francisco, California? A. Northwest B. Southeast C. South D. Northwest 44. This map demonstrates that Cold and Warm fronts are BOTH associated with what type of area? A. High pressure B. Low pressure C. Heavy rains D. Severe winds 45. What is the general direction of air movement BEHIND a cold front? A. Southeast B. Northwest C. East D. North 46. The apparent temperature difference ahead and behind the cold front is approximately__. A. 20 degrees B. 5 degrees C. No temperature change D. 10 degrees 47. What type of front is moving toward Little Rock, Arkansas? A. warm front B. cold front C. occluded front D. stationary Front 48. What type of weather will Little Rock be getting because of this front? A. clear and calm B. warm and sunny C. stormy D. all of the above 49. Which weather station is reporting the warmest temperature in the country? A. Galveston, TX B. Miami, FL C. Jacksonville, FL D. none of the above 50. Ely, Nevada has a high pressure system over it. What type of weather will this create in this area? A. clear B. stormy C. rainy D. windy