ASSIGNMENT 6 (Total = 60)
NAME (FIRST+LAST): Priyanshu Setia ID#: 3126589
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Please mark the correct answer by making the entire sentence BOLD.
1. Which is the correct sequence of layers of the atmosphere, from innermost to
outermost?
a.
troposphere—stratosphere—mesosphere—thermosphere
b.
mesosphere—stratosphere—thermosphere—troposphere
c.
stratosphere—thermosphere—troposphere—mesosphere
d.
thermosphere—stratosphere—mesosphere—troposphere
2. What causes the atmosphere to divide into spherical layers?
a.
the concentration of oxygen in each layer
b.
temperature gradients caused by variations in the absorption of solar
energy.
c.
the concentration of ozone in each layer
d.
the density of each layer
3. Evernia, which is a good indicator of air quality, is a kind of:
a.
Plant
b.
A composite organism (fungus and algae)
c.
Bacteria
d.
None of the above
4. In which atmospheric layer does most of the Earth’s weather occur?
a.
the mesosphere
b.
the thermosphere
c.
the stratosphere
d.
the troposphere
5. What is one function of stratospheric ozone?
a.
it manufactures vitamin D for absorption by plants
b.
it prevents UV rays from reaching the earth’s surface
c.
it manufactures ultraviolet radiation
d.
it screens out gamma radiation
6. What is one way that humans disrupt Earth’s gaseous biogeochemical cycles?
a.
by using mist systems to water crops
b.
by mining limestone
c.
by adding carbon dioxide to the atmosphere as a result of combustion
d.
by emitting waste heat from air conditioners
7. Which atmospheric layer contains ozone that contributes to the formation of
smog?
a.
b.
c.
d.
8. Which of the following is a photochemical oxidant?
a.
ozone
b.
radon-222
c.
methane
d.
benzene
9. What is one effect on human health of increased ozone in the troposphere?
a.
aggravated asthma
b.
skin lesions
c.
skin rash
d.
hepatitis
10. In addition to sunlight, which substances are required for photochemical smog
to form?
a.
Phosphorous and oxides of nitrogen
b.
Volatile organic compounds and oxides of sulphur
c.
Oxides of nitrogen and volatile organic compounds
d.
None of the above
11. An AQHI reading of 5 indicates:
a.
Poor air quality
b.
Good air quality
c.
Moderate air quality
d.
None of the above
a.
an open area in the central plains
b.
a densely populated urban area
c.
the leeward side of a mountain range
d.
a valley surrounded by mountains
a.
surface
c.
d.
a.
3.6
b.
4.6
c.
5.6
d.
6.6
a.
Droplets of acids
b.
Oxides of Sulphur
c.
A mix of suspended salt particles and carbon
d.
None of the above