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ATSC 110 Test 1 Practice Questions and Answers 100% Pass

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ATSC 110 Test 1 Practice Questions and Answers 100% Pass What is the primary source of energy for the earth's atmosphere? - Answer-The sun List the two most abundant permanent gases in today's atmosphere - Answer-Nitrogen (78.09%) and Oxygen (20.95%) Which variable gas show the most variation ...

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EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER, 2024




ATSC 110 Test 1 Practice Questions and
Answers \100% Pass

What is the primary source of energy for the earth's atmosphere? - Answer✔✔-The sun


List the two most abundant permanent gases in today's atmosphere - Answer✔✔-Nitrogen

(78.09%) and Oxygen (20.95%)


Which variable gas show the most variation at earth's surface? - Answer✔✔-Water vapor


What are some important roles that water plays in our atmosphere? - Answer✔✔-1. Only

substance that can exist as a solid, liquid, or gas at normal temps near the earth's surface




2. Releases large amounts of heat called latent heat when water vapor changes to liquid or ice.

This is an important source for storm development




3. Potent greenhouse gas.


Why has CO2 been on the increase over the past 100 years? - Answer✔✔-Decay of vegetation,

volcanic eruptions, fossil fuels, deforestation. Mainly fossil fuels and deforestation




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,EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER, 2024


List the most abundant greenhouse gasses in our atmosphere - Answer✔✔-Water vapor and

Carbon Dioxide.


Explain how the atmosphere "protects" inhabitants on the earth's surface. - Answer✔✔-Ozone

shields plants, animals, and humans from the sun's harmful ultraviolet radiation.


What are aerosols, and list some of the aerosols in our atmosphere? - Answer✔✔-Aerosols are

impurities found in the atmosphere




Dust and soil particles, microscopic salt particles, smoke, volcanic ash


Explain the concept of air pressure in terms of mass of air above a level. In other words, how do

air pressure values change with height? - Answer✔✔-with an increase in height, pressure values

will decrease.


Why do air pressure and density always decrease with increasing height above the surface? -

Answer✔✔-As we climb in elevation, fewer air molecules are above us; hence, air pressure and

density decrease with increasing height.


What is the average decrease in temperature with height , or standard lapse rate, in the

troposphere? - Answer✔✔-The temperature on average will decrease by 6.5C̊ per 1000 meters

(or) 3.6F̊ per 1000 feet rise in elevation within the troposphere.




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, EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER, 2024


Why do air pressure and density decrease more rapidly near the earth's surface than aloft? -

Answer✔✔-The air pressure and density decrease rapidly at first because air is compressed

near the surface due to the gravitational force.


What is the standard atmospheric pressure at sea level in:




Inches of Mercury ("Hg)




Millibars (mb) - Answer✔✔-Inches of mercury


29.92" Hg


Millibars


1013.25 mb


Identify and provide the average elevations of the standard atmospheric pressure levels?


Level (mb) Height (ft) Height (mi)


1000 ________ ________


850 ________ ________


700 ________ ________


500 ________ ________


300 ________ ________

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