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8th Science 7
Ch 7
| Question | Answer |
|---|---|
| The outermost layer of the atmosphere is the | exospheres |
| Air flowing up a mountain's slope due to the differences in temperature and pressure is | anabatic winds |
| What type of winds occurs when dense, cold air flows from higher to lower elevations due to gravity | fall wind |
| Which layer of the atmosphere "bounces" certain types of radio waves back toward the ground | ionosphere |
| Heat transfer by electromagnetic waves is | radiation |
| Heat transfer by moving currents of hot air is | convection |
| A cool, gentle wind that blows from the land to the sea is a | land breeze |
| What is the most powerful and dangerous form of UV radiation | UVC |
| What type of radiation causes tanning and sunburns | UVB |
| Which layer of the atmosphere is characterized by high temperatures | thermosphere |
| The most abundant gas in the homosphere is | nitrogen |
| The process in which the temperature of a gas rises as the gas is compressed with no heat lost is | adiabatic heating |
| The coldest point in the atmosphere is the | mesopause |
| What marks the upper boundary of the thermosphere | thermopause |
| Winds that reverse their direction from season to season are called | monsoons |
| A warm, dry wind that travels down a slope is | foehn |
| Upper troposphere waves that play a large part in the formation of cyclones and anticyclones are called | Rossby waves |
| The four main factors that affect insolation are | cloud cover, length of daytime, angle of sun's rays, Earth's distance from the sun |
| least understood layer of the atmosphere | mesosphere |
| the atmosphere's weather layer | troposphere |
| strong, steady winds but few changes of weather | stratosphere |
| portion of the earth's magnetic field is affected by the solar winds | magnetosphere |
| What term refers to the decimal equivalent of solar radiation that an object reflects | albedo |
| What is the blanket of gases that surrounds our planet | atmosphere |
| What is a circulating spiral of wind around a low pressure system | cyclone |
| What term refers to the amount of energy available to heat the earth's land, water and air | energy budget |
| Name the process that traps heat in the earth's atmosphere | greenhouse effect |
| What beltlike regions surround the earth and trap particles from the solar wind | Van Allen radiation belts |
| regions of high pressure and gentle winds at 30 degrees north and south latitude | horse latitudes |
| surface winds that blow from high pressure regions toward the equator | trade winds |
| equatorial zone where sailing ships were often left without wind | ITCZ |
| high altitude wind in a narrow, meandering band | jet stream |
| A circulating spiral of wind around a high pressure system is called a | anticyclone |
| Atmospheric pressure at sea level is ? pounds per square inch | 14.7 |
| Extremely powerful radiation that comes from deep space is | cosmic rays |
| The most important greenhouse gas is | water vapor |
| The region in which a magnet affects other objects is the | magnetic field |
| The lower layer of the atmosphere is the | homosphere |
Created by:
Harrison83
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