Section #: 25.3
Air Resources
Practice Test
1.
How is oxygen released into Earth's atmosphere?
SC.D.1.4.1
a.
burning fossil fuels
b.
photosynthetic plants
c.
volcanic eruptions
d.
burning forests
2.
What is an example of natural air pollution?
SC.G.2.4.6
a.
carbon monoxide from engine exhaust
b.
acid precipitation
c.
dust from desertification
d.
smoke from forest fires
Hint
3.
Oxygen __________.
SC.D.1.4.4
a.
is released by volcanic eruptions in large quantities
b.
was used up by early life-forms during photosynthesis
c.
has not always been a part of Earth's atmosphere
d.
has been in Earth's atmosphere for the past 4.6 billion years
4.
Oxygen makes up __________ percent of Earth's air.
SC.E.1.4.3
a.
80
b.
73
c.
21
d.
12
Hint
5.
What part of this township shown in the map can negatively impact the air resources?
SC.G.2.4.6
a.
highway
b.
river
c.
woods
d.
gravel pit
Hint
