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Air & Atmosphere
| Question | Answer |
|---|---|
| What is the most abundant gas in the atmosphere? | Nitrogen |
| What instrument is used to measure air pressure? | barometer |
| The layers of the atmosphere are classified according to changes in | temperature |
| Name the four main layers of the atmosphere in order, beginning with the layer closest to earths surface. | troposphere, stratosphere, mesosphere, thermosphere |
| In what layer of the atmosphere is the ozone layer found? | stratosphere |
| In what layer of the atmosphere does weather occur? | troposphere |
| Air pressure is greatest near Earth's surface and _____as the distance away from the surface increases. | decreases |
| The force of air pushing on an area or surface is known as | air pressure |
| Air pressure _____, as altitude increases. | decreases |
| What is the warmest layer of the atmosphere? | thermosphere |
| The distance above sea level is known as _____. | altitude |
| In the troposphere, temperatures _____ as altitude increases. (increase or decrease) | decrease |
| In which layer of the atmosphere would you find meteoroids? | mesosphere |
| What two gases make up approximately 99% of earth's atmosphere? | Nitrogen (78%) and Oxygen (21%) |
| What is the thin layer of gases surrounding Earth called? | atmosphere |
| What tool is used to measure air temperature? | thermometer |
| What is the layer of gases called that absorbs much of the the sun's harmful radiation before reaching Earth? | the ozone layer |
| What is the type of energy received from the sun that may damage skin and cause cancer. | ultraviolet radiation |
| What is the process called in which Earth's atmosphere traps heat energy? | the Greenhouse Effect |