WorksheetsNitrogen
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
what processes release carbon to the air
a)
combustion
b)
decomposition
c)
respiration
d)
photosynthesis
2.
what is the first stage of the water cycle
a)
evaporation
b)
condensation
c)
precipitation
d)
runoff
3.
what is the second stage of the water cycle
a)
evaporation
b)
condensation
c)
percipitation
d)
runoff
4.
what is the third stage of the water cycle
a)
evaporation
b)
percipitation
c)
condensation
d)
runoff
5.
in what stage of the carbon cycle does creates carbon from burning fossil fuels
a)
decomposition
b)
photosynthesis
c)
combustion
d)
nitrogen fixation
6.
what is the % of oxygen in the air
a)
69
b)
21
c)
15
d)
7
7.
what is the percentage of carbon in the air
a)
0.03
b)
1
c)
5
d)
0.01
8.
in what process is carbon turned into oxygen
a)
combustion
b)
photosynthesis
c)
respiration
d)
decomposition
9.
did you enjoy
a)
no
b)
yes
c)
a little
d)
not much
10.
what is the percent of nitrogen in the air
a)
69
b)
78
c)
42
d)
96
100 %
