Fill This Form To Receive Instant Help
Fill This Form To Receive Instant Help
Homework answers / question archive / University Of Arizona ATMO 170A Final Study Guide Chapter 1 1)Air density is greatest in the____________
University Of Arizona
ATMO 170A
Final Study Guide
Chapter 1
1)Air density is greatest in the____________.
a. heterosphere
b. thermosphere
c. ionosphere
d. homosphere
2. Air molecules are held near the earth's surface by .
a. solar radiation
b. gravity
c. cloud cover
d. moisture
e. temperature
3. Areas of high atmospheric pressure are also known as .
a. Hurricanes
b. Anticyclones
c. Troughs
d. Tornadoes
4. Atmospheric concentrations of can vary significantly depending on time and location.
a. Hydrogen
b. water vapor
c. helium
d. argon
5. Average atmospheric CO2 concentrations have over the past 100 years.
a. slightly decreased
b. remained constant
c. significantly decreased
d. increased
6. Carbon dioxide is removed from the atmosphere through the process of .
a. fuel combustion
b. respiration
c. volcanic activity
d. photosynthesis
7. In a temperature inversion, air temperature .
a. increases with increasing height
b. decreases with increasing height
c. increases with decreasing height
d. remains constant with increasing height
8. Near the earth's surface, occupies about 78% and about 21% of the total volume of dry air.
a. nitrogen; oxygen
b. hydrogen; oxygen
c. oxygen; hydrogen
d. nitrogen; water vapor
e. hydrogen; helium
9. The boundary that separates sharp changes in temperature, humidity, and wind direction is known as a(n) .
a. front
b. anticyclone
c. posterior ridge
d. anterior ridge
10. The letters H and L on a surface weather map refer to regions of high and low .
a. temperature
b. winds
c. pressure
d. latitude
11. The majority of atmospheric ozone (about 97%) is found in the .
a. thermosphere
b. mesosphere
c. stratosphere
d. exosphere
12. The most abundant gases in the earth's present day atmosphere (by volume) are .
a. carbon dioxide and nitrogen
b. oxygen and water vapor
c. nitrogen and oxygen
d. oxygen and helium
13. The only substance found naturally in the lower atmosphere that can exist as a solid, a liquid, and a gas is .
a. carbon dioxide
b. water
c. methane
d. ozone
14. The primary source of water vapor and carbon dioxide to the earth's early atmosphere was most likely .
a. Photosynthesis
b. ozone reactions
c. outgassing
d. nitrogen chemical reactions
15. The vertical profile of is variable in each layer of the earth's atmosphere.
a. air pressure
b. air temperature
c. air density
d. altitude
16. Tiny solid or liquid suspended atmospheric particles of various composition are called .
a. aerosols
b. carcinogens
c. greenhouse gases
d. chlorofluorocarbons
17. What is the weather element that involves the horizontal movement of air?
a. air temperature
b. air pressure
c. wind
d. humidity
18. What pattern is most likely associated with clear skies and fair weather?
a. high pressure regions
b. low pressure regions
c. a cold front
d. a warm front
19. Which gas is responsible for the temperature inversion in the stratosphere?
a. carbon dioxide
b. nitrogen
c. ozone
d. argon
20. Which of the following is an example of condensation?
a. water vapor formation
b. cloud droplet formation
c. photosynthesis
d. ice formation
21. You are facing north and the wind is blowing in your face. This wind would be called a(n) .
a. south wind
b. east wind
c. north wind
d. southerly wind
22. Methane (CH4), nitrous oxide (N2O), and chlorofluorocarbons (CFCs) are greenhouse gases
a. True
b. False
23. Most of the molecular oxygen (O2) in the earth's present-day atmosphere comes from photosynthesis.
a. True
b. False
24. On a cloudless day, the tropopause is easily visible with the naked eye.
a. True
b. False
25. The air pressure at the summit of Mount Everest is higher than the air pressure at sea level.
a. True
b. False
