1. Which of the following is true about rocks? a. Rocks are composed of only one mineral b. Rocks do not contain any mineral matter. c. Coal is not considered to be a true rock d. Most rocks are a mixture of minerals 2. Which of the following is not one of the three types of rocks? a. Igneous b. Sedimentary c. Magma d. Metamorphic 3. Metamorphic rock forms as a result of a. Heat and pressure b. The cooling of magma c. Compaction of sediments d. The melting of rock 4. All of the energy that drives the Earth’s rock cycle comes from? a. The wind b. Earth’s interior and the sun c. The breakdown of organic matter d. The movement of water over earth’s surface 5. A rock that forms when magma hardens beneath Earth’s surface is called an a. Intrusive metamorphic rock b. Intrusive igneous rock c. Extrusive sedimentary rock d. Extrusive igneous rock 6. Which of the following is an example of an extrusive igneous rock? a. Rhyolite b. Granite c. Andesite d. Coal 7. A certain igneous rock contains 25 percent dark silicate minerals. What is it? a. Granitic b. Basaltic c. Andesitic d. Ultramific 8. A conglomerate is a rock that forms as a result of a. Intense heat and pressure b. Compaction and cementation c. Rapid cooling d. Slow cooling 9. Which describes breccias? a. A clastic sedimentary rock with angular particles 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. b. A clastic sedimentary rock with large, rounded particles. Limestone is an example of a a. Clastic sedimentary rock b. A conglomerate c. A biochemical sedimentary rock d. Breccias Fossils are only found in a. Intrusive igneous rocks b. Extrusive igneous rocks c. Sedimentary rocks d. Metamorphic rocks Sedimentary rocks with ripple marks suggest that the rocks formed a. Along a stream bed or beach b. When an ancient animal swam over them c. When wet mud dried and sank What rock-forming process occurs when hot magma touches rock a. Regional metamorphism b. Biochemical sedimentation c. Contact metamorphism Which agent of metamorphism can cause the overall composition of the rock to change? a. Hydrothermal solutions b. Heat c. Pressure d. Time A foliated metamorphic rock forms when crystals a. Combine but do not form bands b. Combine and form bands A metamorphic rock can be classified according to its a. Density and texture b. Color and composition c. Texture and composition In the next 50-60 years, wind power could meet between __ to ___ percent of the country’s power resource. a. 5-10 percent b. 25-30 percent c. 35-40 percent Why are surface temperatures high at stream reservoirs? a. Volcanic activity b. Plate theory c. External heat d. Because MRs. Herringļ _______ power is generated by falling water 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. a. Pollution b. Geothermal energy c. Nuclear energy d. Hydroelectric power Practically every manufactured product does not contain any minerals a. True b. False Nonmetallic mineral resources are extracted for the a. Nonmetallic elements they contain b. Physical properties c. Chemical properties d. A, b, c What is the simplest and most widely used solar energy system? a. Sun b. Fuel c. Solar collector d. Pollution Wind energy is a new source of energy a. True b. False Wind energy has been used to power ships, grinding grains, and _________. a. Windmills b. Atoms c. Generators What type of rock is soft coal? a. Igneous b. Sedimentary c. Metamorphic What type of rock is hard coal? a. Igneous b. Sedimentary c. Metamorphic Heat and pressure play a valuable role in the transformation of coal and oil a. True b. False What is the best known placer deposit a. Silver b. Copper c. Gold Wind turbines are turned by water a. True b. False 30. What is one thing absolutely necessary for a dam a. Rocks b. Height c. Beavers d. Cement 31. Tidal power is harnessed by constructing a dam across the mouth of a bay with a a. Short beach b. Short tidal range c. Long tidal range d. Sun 32. In 1972, the federal government passed several laws to a. Prevent pollution b. Protect resources c. Decrease pollution d. A, b, c 33. _________ is the careful use of resources a. Pollution b. Solar energy c. Conservation 34. What is an example of land resources a. Soil b. Mines c. A and b 35. ___________ is the unnatural warming of the earth’s atmosphere a. Pollution b. Global warming c. Conservation 36. __________ is decomposed organic materal a. Compost b. Recycling c. Resources d. Land 37. What did congress pass in 1972? a. Clean Water Act b. Safe Drinking Water Act 38. The process that occurs when physical forces break down into smaller pieces without changing the rock’s chemical composition is called_________________ a. Differential weathering b. Mechanical weathering c. Chemical weathering 39. What is responsible for the formation of exfoliation domes? a. Frost wedging 40. 41. 42. 43. 44. 45. 46. 47. b. Biological activity c. Reactions with oxygen d. Unloading The gradual rounding of the corners and edges of angular blocks of rock is called a. Exfoliation b. Unloading c. Spheroidal weathering d. Mechanical weathering. Whenever the characteristics and chemical composition of weathered materials have been altered, they have undergone ___________. a. Chemical weathering b. Mechanical weathering c. Mass movement d. Frost wedging Chemical weathering would be most effective in a. A warm dry climate b. Cold, dry climate c. Warm, humid climate d. Equal in all climates What kind of material is found in the C horizon of a soil profile a. Partially weathered parent material b. Clay particles c. Hardpan d. Mineral and organic matter The B horizon is also called the a. Topsoil b. Unaltered parent material c. Partially altered parent material d. Subsoil A soil associated with hot and wet tropics is a. Laterite b. Pedocal c. Pedalfer d. Bedrock soil Laterite soils contain high amounts of a. Organic material b. Iron oxide c. Calcite d. Calcium carbonate Pedalfer soils would most likely be found a. On an island close to the equator b. In a tropical rainforest 48. 49. 50. 51. 52. 53. 54. 55. c. In the dry areas of US d. In the eastern half of the US Which of the following human activities has caused an increase in soil erosion a. Clear cut logging b. Clearing land for construction c. Plowing land for farming d. All of the above The rate of soil erosion depends on a. Climate b. Slope steepness c. The type of vegetation d. All of the above The process responsible for moving material downslope under the influence of gravity is called a. Erosion b. Weathering c. Mass movement d. Soil formation Which of the following is not true about mass movements a. Some mass movements are too slow to be seen b. Mass movements always lead to landslides c. Gravity is the driving force d. Mass movements are always downslope What factor commonly triggers mass movements a. Saturation of surface materials with water b. Earthquakes c. Removal of vegetation d. All of the above Why can the removal of vegetation trigger mass movements a. The soil loses nutrients and begins to crumble b. The plant roots bind the soil and regolith together c. The shaking triggers d. The plant roots lubricate the loose sediment OVersteepened slopes often lead to mass movements because a. Plants cannot grow on them b. The angle of their slope is between 10-20 degrees c. The angle of their slope is less than 20 degrees d. The angle of their slope is greater than 40 degrees During what season would you expect mass movements to be a greater threat a. A dry summer b. A wet spring before vegetation c. A wet spring after vegetation d. A dry autumn 56. When a block of material moves downslope along a curved surface, its called a. A rockfall b. A rockslide c. A slump d. A creep 57. What is the slowest type of mass movements a. A slump b. A rockfall c. An earthflow d. A creep 58. A relatively rapid form of mass movement that is most common in dry mountainous regions is a. Creep b. Mudflow c. Slump d. Earthflow 59. Which of the following best describes a slump a. Slippage of a block of material b. Blocks of rock sliding down a slump c. Rapid flow of water-saturated debris d. Slow downhill movement of soil and regolith 60. Alternate freezing and thawing often leads to a. Creep b. Slumps c. Mudflows d. Earthflows 61. The unending circulation of the earth’s water supply is a. Water cycle b. Infiltration c. Gradient d. Discharge 62. The movement of water into rock and soil through cracks and pore spaces is a. Water cycle b. Infiltration c. Gradient d. Discharge 63. The slope or steepness of a stream channel is a. Water cycle b. Infiltration c. Gradient d. Discharge 64. Volume of water passing a certain point in a given unit of time is a. Water cycle 65. 66. 67. 68. 69. 70. 71. 72. b. Infiltration c. Gradient d. Discharge A stream that empties into another stream a. Bedloads b. Tributary c. Meander d. Capacity A stream in a low, flat-bottomed valley that is near its base level often many bends called a. Bedloads b. Tributary c. Meander d. Capacity Part of a stream’s load of solid material that is made up of sediment too large to be carried is a. Bedloads b. Tributary c. Meander d. Capacity The maximum load it can carry a. Bedloads b. Tributary c. Meander d. Capacity Accumulation of sediment where a stream enters a lake or ocean a. Natural levee b. Delta c. Flood plain d. Drainage basin Landform that parallels streams a. Natural levee b. Delta c. Flood plain d. Drainage basin During a flood the river overflows its banks and floods the plain a. Natural levee b. Delta c. Flood plain d. Drainage basin Land area that contributes water to a stream a. Natural levee b. Delta c. Flood plain 73. 74. 75. 76. 77. 78. 79. 80. 81. d. Drainage basin A ___________ separates the drainage basin of one stream from another a. Divide b. Ground water c. Zone of saturation d. Water table Area where water fills all the open spaces in sediment and rock a. Divide b. Ground water c. Zone of saturation d. Water table Water found in the zone of saturation a. Divide b. Ground water c. Zone of saturation d. Water table The upper limit of the zone of saturation a. Divide b. Ground water c. Zone of saturation d. Water table Percentage of pores a. Spring b. Permeability c. Artesian well d. Porosity Ability of something to release water a. Spring b. Permeability c. Artesian well d. Porosity Whenever the water table intersects the ground surface it forms a a. Spring b. permeability c. artesian well d. porosity Formation in which groundwater rises on its own pressure a. Spring b. Permeability c. Artesian well d. Porosity Naturally formed underground chamber 82. 83. 84. 85. 86. 87. 88. 89. a. Cavern b. Traverntine c. Karst topography d. Sinkhole Calcium carbonate produces the limestone we call a. Cavern b. Traverntine c. Karst topography d. Sinkhole Ares that have been shaped by the dissolving power of groundwater a. Cavern b. Traverntine c. Karst topography d. Sinkhole A depression produced in an area where groundwater has removed soluble rock a. Cavern b. Traverntine c. Karst topography d. Sinkhole What is a fault a. A place on earth where earthquakes cannot occur b. A fracture in earth where movement has occurred c. The place on earth’s surface where structures move during an earthquake d. Another name for an earthquake What is an earthquake’s epicenter a. The place on the surface directly above the focus b. The spot below the focus Most earthquakes are produced by the rapid release of which kind of energy a. Kinetic b. Thermal c. Elastic d. Mechanical A seismogram shows that p waves travel a. At the same speed as surface waves b. Slower than s waves c. The same speed as s waves d. Faster than s waves A travel time graph can be used to find the a. Focus of an earthquake b. Strength of an earthquake c. Damage caused by an earthquake d. The epicenter of an earthquake 90. Where do most earthquakes occur a. In the mountains of Africa b. Around the edge of the Pacific Ocean c. The Atlantic ocean d. Europe 91. What is the most widely used measurement for earthquakes a. Seismic scale b. Richter scale c. Moment magnitude scale 92. Liquefaction occurs when a. Large waves wash over coastal areas b. Earthquakes occur in the ocean c. Loose, saturated soil turns into liquid d. Mudslides downhill 93. A tsunami can occur when there is vertical movement at a fault under a. A mountain range b. The San Andreas fault c. The ocean floor d. A small lake 94. Violent shaking from an earthquake can cause soil and rock on slopes to fail and cause a a. Fault b. Landslide c. Tsunami d. Sinkhole 95. Earth’s thin, rocky outer layer is its a. Core b. Mantle c. Crust d. Outer core 96. The earth’s core is made of an alloy of a. Iron and nickel b. Copper and iron c. Zinc and magnesium d. Iron and zinc 97. What does Earth’s crust and uppermost mantle form a. Asthenosphere b. Hydrosphere c. Lithosphere 98. Earth’s inner core is solid because of a. The composition of its rock b. Diameter c. Extreme cold d. Immense pressure 99. What is the moho a. The boundary between the outer and inner core b. Boundary between the crust and the mantle c. The material of which the mantle is composed d. An area of the mantle that will not transmit seismic waves 100. The continental crust is made largely of a. Gneiss b. Granite c. Basalt d. Limestone 101. The elastic _______ hypothesis concerns the release of stored energy from rocks a. Rebound b. Granite c. Rock 102. The Tsunami Warning System protects coastal areas around the _______ ocean a. Atlantic b. Indian c. Pacific 103. Earthquakes can cause __________ when gas and electric lines are cut a. Earthquakes b. Storms c. Hives d. Fires 104. Most of the Earth’s volume is contained in the ____________, beneath the crust a. Core b. Mantle c. Crust 105. Which of the following is not a characteristic of S waves a. They travel slower than P waves b. They temporarily change the volume of material they pass through c. They shake particles at right angles to their direction of travel d. They cannot be transmitted through water or air 106. The moment magnitude is calculated using all of the factors except for a. Surface area of the fault b. Magnitude of past earthquakes in the area c. Average displacement along a fault d. Rigidity of rock in the area 107. Mrs Herring is awesome a. True b. False c. 108. A magma’s viscosity is directly related to its ___ a. Depth b. Age c. Color d. Silica content 109. Which of the following factors helps determine whether a volcanic eruption will be violent or relatively quiet a. Amount of dissolved gases in the magma b. Temperature of the magma c. Composition of the magma d. All of the above 110. A lava flow with a surface of rough, jagged blocks and sharp, angular projections is a. Pyroclastic flow b. Aa flow c. Pahoehoe flow d. Ash flow 111. As the temperature of lava increases, a. Its viscosity decreases b. It begins to harden c. Its viscosity increases d. It can flow a much shorter distance 112. A volcanic bomb is a a. Very violent explosion b. Piece of semi molten rock ejected as glowing lava c. Pocket of gas released suddenly d. Tiny particle of ejected rock 113. Which of the following is Not considered to be a pyroclastic material a. Ash b. Lapilli c. Cinders d. Pahoehoe 114. Large particles of hardened lava ejected from a volcano are called a. Lapilli b. Cinders c. Blocks d. Bombs 115. Which of the following is true about volcanic blocks and bombs a. Blocks are semi-molten when ejected b. Bombs are larger than blocks c. Bombs are found closer to the volcano than blocks d. Bombs often have a streamlined shape e. 116. a. b. c. d. 117. a. b. c. d. 118. a. b. c. d. 119. a. b. c. d. 120. a. b. c. d. 121. a. b. c. 122. a. b. c. d. 123. a. b. c. 124. a. b. c. The most violent volcanic eruptions are associated with what type of volcano Cinder cones Shield volcanoes Composite cones Fissure eruptions Structures that form from the cooling and hardening of magma beneath Earth’s surface Vents Calderas Plutons Lahars The largest intrusive igneous body is Stock Batholiths Dike Sill Magma forms when solid rock in the crust and upper mantle Melts Vaporizes Crystallizes Cools The volcanic landforms at divergent ocean plate boundaries are Oceanic ridges Volcanic island arcs Continental volcanic arcs Ocean trenches Most of the active volcanoes on Earth are located in a belt known as the Circum-Atlantic belt Ring of fire Ring of Lava The Hawaiian Islands are associated with what type of volcanism Intraplate volcanism Subduction zone volcanism Volcanism at a divergent plate boundary Volcanism at a convergent plate boundary What percentage of Earth’s surface is covered by water 45 % 51% 71% Which of the world’s oceans is the largest and deepest Arctic Ocean Atlantic Ocean Indian Ocean 125. 126. 127. 128. 129. 130. 131. 132. 133. 134. d. Pacific Ocean Which of these features is Not found on the ocean floor a. Mountain b. Volcano c. River d. Plain What does sonar equipment measure a. The density of the ocean’s water b. The depth of the ocean floor c. The sound produced by ocean creatures Scientists use satellites to measure the a. Ocean floor depth b. Size of underwater features c. Sea-surface height d. Ocean’s salinity Which of the following areas is Not one of the three main regions of the ocean floor a. Ocean floor basin b. Continental margins c. Continental rock d. Mid-ocean ridge The continental margins of the Pacific ocean are a. Wider than those of the Atlantic and have more earthquake activity b. Narrower than those of the Atlantic and are not covered with thick layers of sediment Trenches form at sites where a. One plate descends beneath another b. Erosion cuts into the continental shelf c. Two plates diverge under the sea Abyssal plains are very flat features that form when a. Volcanoes spread lava on the ocean bottom b. Turbidity currents deposit sediments on the ocean floor c. Ocean waters flood plains on land Which of the following forms at mid-ocean ridges a. Island arcs b. Deep-sea trenches c. Guyots d. New ocean floor The three types of ocean floor sediments are classified a. Color b. Origin c. Particle size Terrigenous sediment consists primarily of mineral grains eroded from a. Mid-ocean ridges 135. 136. 137. 138. 139. 140. 141. 142. 143. b. Marine animal shells c. Continental rocks d. Undersea minerals From which type of material does biogenous sediment form a. Once living organisms b. Manganese nodules c. Rocks on land d. Cooled magma Hydrogenous sediment is made up of a. Cinders and rock from undersea volcanoes b. Parts of once living organisms c. Eroded continental rock d. Minerals that crystallize directly from ocean waters What are the two major energy source obtained from the ocean floor a. Oil and manganese b. Calcium carbonate and halite c. Natural gas and coal d. Oil and natural gas Which of the following areas does not contain major deposits of energy resources a. Persian Gulf b. Hudson Bay c. Gulf of Mexico d. North Sea Most oceanic gas hydrates form when a. Bacteria break down organic matter in seafloor sediments b. Plant matter breaks down to form peat c. Petroleum deposits seep into ocean floor sediment Gas hydrates are compact chemical structures made of natural gas and a. Halite b. Water c. Manganese d. Petroleum Which offshore resources are second only to petroleum in economic value a. Salts and gypsum b. Manganese nodules and halite c. Calcium carbonate and copper d. Sand and gravel Manganese nodules are a. Manganese salts that concentrate when seawater evaporates b. Lumps of manganese and other metals found on the ocean floor Earth is often called the “blue planet” because ocean water covers much of its surface a. True b. False 144. The world ocean can be divided into four main basins a. True b. False 145. The continental shelf is the gently sloping submerged surface extending from the shoreline a. True b. False 146. Passively drifting or weakly swimming organisms that cannot move independently of ocean currents a. Zooplankton b. Plankton c. Phytoplankton d. Nekton 147. Organisms that can move independently of ocean currents by swimming or other means a. Zooplankton b. Plankton c. Phytoplankton d. Nekton 148. Animal plankton a. Zooplankton b. Plankton c. Phytoplankton d. Nekton 149. The forms of marine life tat live on or in the ocean bottom a. Benthic zone b. Oceanic zone c. Benthos d. Mixed zone 150. The marine life zone beyond the continental shelf a. Benthic zone b. Oceanic zone c. Benthos d. Mixed zone 151. An area of the ocean surface with uniform temperatures created by the mixing of water a. Benthic zone b. Oceanic zone c. Benthos d. Mixed zone 152. A layer of water in which there is a rapid change of density with depth a. Thermocline b. Pycnocline 153. 154. 155. 156. 157. 158. 159. 160. 161. c. Food chain d. Food web A layer of water in which there is a rapid change of temperature with depth a. Thermocline b. Pycnocline A group of interrelated food chains a. Thermocline b. Pycnocline c. Food chain d. Food web The process by which certain microorganisms use chemical energy to produce food a. Abyssal zone b. Photosynthesis c. Chemosynthesis d. Neritic zone The marine life zone that extends from the low tide line out to the shelf break a. Abyssal zone b. Photosynthesis c. Chemosynthesis d. Neritic zone The proportn of dissolved salts to pure water, usually expressed in parts per thousand a. Trophic level b. Density c. Salinity d. Photic zone A nourishment level in a food chain a. Trophic level b. Density c. Salinity d. Photic zone What causes ocean surface currents a. Gravitational attraction b. Friction between the ocean and wind on its surface c. Ocean movements associated with earthquakes d. Changes in water density Currents affect climate by a. Making ocean water evaporate b. Transferring heat and cold between the tropics and polar regions c. Changing the density of water in the tropics What is the importance of upwelling a. It brings warm water from the tropics to the poles b. It decreases winds along exposed coastlines c. It helps warm the North Atlantic gyre d. It brings dissolved nutrients to the ocean’s surface 162. A decrease in seawater temperature or an increase in salinity a. Upwelling along tropical coasts b. An increase in seawater density c. The circulation of ocean gyres d. A decrease in seawater density 163. What causes density currents to form in the Mediterranean sea a. Condensation b. Evaporation c. Transpiration d. Upwelling 164. Most ocean waves get their energy from a. The sun b. Plate movement c. The moon’s gravitational attraction d. The wind 165. Which of the following factors does Not help determine the height, length, and period of a wave a. Wind speed b. Fetc c. Temperature d. How long the wind blows 166. When waves grow so tall they topple over they form ocean breakers called a. Whitecaps b. Fetch c. Tsunamis 167. Energy moves through waves in a a. Convection current b. Circular motion c. Oscillation motion d. Straight line 168. What is the vertical distance between a trough and a crest a. Wave height b. Wavelength c. Wave speed d. Wave period 169. The two forces that produce tides are gravity and a. Inertia b. Friction 170. Ocean tides result largely from the gravitational attraction of the a. Sun b. Core of Earth c. Closest planets d. Moon 171. Which processes carve shoreline features a. Erosion and abrasion b. Transportation and condensation c. Deposition and sedimentation 172. Longshore currents form because a. Beaches absorb waves and backwash in some areas of the coast b. Waves hit the coast at an angle and form currents in the surf zone c. Backwash leaves the shore with more energy than swash d. Eroded material from the shoreline deflects currents 173. Which of the following is Not a depositional shoreline feature a. Wave-cut platform b. Spit c. Tombolo d. Barrier island 174. Where do baymouth bars form across bays a. Where there is no longshore current nearby b. Where strong currents move in and out daily c. Where sea stacks stand on both sides of the entrance d. Where currents are weak 175. Barrier islands form as the direct result of a. Erosion b. Precipitation c. Deposition d. Abrasion 176. What is a structure build parallel to the shore that shields the coast from breaking waves a. Groin b. Seawall c. Wave barrier d. Tombolo 177. The ocean’s circulation is organized into five major gyres, or current systems that move in circles within ocean basins a. True b. False 178. The rising of cold water from deep layers of the ocean to replace warmer surface water is a. Groin b. Seawall c. Upwelling 179. The tops of waves are the _______, the low areas are called the _______ a. Seawall, troughs b. Crests, troughs c. Troughs, crests 180. Beach nourishment is the addition of large amounts of sand to a beach system to stabilize shoreline sands without building structures a. True b. False 181. The layer of the atmosphere immediately above the troposphere, characterized by increasing temperatures with height is a. Troposphere b. Stratosphere c. Mesosphere d. Thermosphere 182. The layer of the atmosphere immediately above the stratosphere and characterized by decreasing temperatures is a. Trophosphere b. Stratosphere c. Mesosphere d. Thermosphere 183. Thermal energy transferred from one object to another a. Albedo b. Ozone c. Conduction d. Convection 184. The lowermost layer of the atmosphere, it is characterized by a decrease in temperature with height a. Trophosphere b. Stratosphere c. Mesosphere d. Thermosphere 185. The transfer of heat in waves through space a. Radiation b. Kinetic energy 186. Any form of water that falls from a cloud a. Evaporation b. Precipitation c. Wet Point d. Front 187. The energy absorbed and released during a change in state a. Latent heat b. Relative humidity 188. The change of converting a gas to a liquid a. Condensation b. Evaporation c. Sublimation d. Saturation 189. The conversion of a solid directly to a gas without passing through a liquid state a. Condensation b. Evaporation c. Sublimation d. Saturation 190. The state of air that contains the maximum quantity of water vapor that it can hold at any given temperature and pressure a. Condensation b. Evaporation c. Sublimation d. Saturation 191. Tiny bits of particulate matter that serve as surfaces on which water vapor condenses a. Wet abiabatic rate b. Dew point c. Condensation nuclei 192. One of the three basic cloud forms, sheets or layers that cover much or all of the sky a. Stratus b. Cirrus c. Cumulus 193. At any given time how many thunderstorms are found on Earth a. 100 b. 2000 194. Which is the correct order a. Cumulus dissipating, mature b. Mature, dissipating, cumulus c. Cumulus, mature, dissipating d. Dissipating, cumulus, mature 195. Thunderstorms form when warm, humid air rises in a a. Clockwise spiral b. Counterclockwise spiral c. Stable environment d. Unstable environment 196. Hurricanes are classified according to intensity using the a. Fujita b. Saffir-Simpson scale c. Doppler scale d. Richter scale 197. a. b. c. d. 198. a. b. c. d. 199. a. b. c. d. 200. a. b. c. d. What causes a hurricane to lose energy when it moves onto l and Friction Lack of warm, moist air Heating from below by land Both a and b A rotating column of air is called Anticyclone Hurricane Vortex Cumulonimbus cloud Typhoon is another name for Tornado Thunderstorm Wave cyclone Hurricane A cold, dry air mass that moves over warm tropical waters will likely become Warmer and drier Colder and drier Colder and wetter Warmer and wetter