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BG Cycles Review
Test Description: Test your knowledge of the processes that make up the Biogeochemical cycles.
Instructions: Answer all questions to get your test result.
1) Nitrogen is unavailable to plants in the form of
A
nitrates
B
all are correct
C
nitrogen gas
D
nitrites
2) The carbon cycle depends primarily on these 2 processes
A
transpiration & decomposition
B
infiltration & respiration
C
photosynthesis & cellular respiration
D
combustion & evaporation
3) Which of the following is the correct sequence as water moves from the ocean to land?
A
runoff, precipitation, evaporation, condensation
B
evaporation, condensation, precipitation, runoff
C
precipitation, evaporation, condensation, runoff
D
evaporation, precipitation, runoff, condensation
4) Transpiration is the process in which:
A
puddles evaporate into clouds
B
people breathe in air and exhale carbon dioxide
C
water vapor moves from living plants into the atmosphere
D
a new universe is formed
5) The water cycle is
A
a new type of 2 wheeled vehicle powered by hydrogen & oxygen
B
the constant movement of water from the atmosphere to the earth and then back to the atmosphere
C
the movement of water from high areas to low areas
D
the tendency for water to travel in circles
6) The process of denitrification converts ammonia to:
A
urea
B
nitrates
C
rain
D
nitrites
7) Water returning to earth from the atmosphere is called:
A
precipitation
B
condensation
C
evaporation
D
percolation
8) Humans excrete this form of Nitrogen
A
nitrogen gas
B
ammonia
C
nitrates
D
nitrites
9) Legume plants
A
depend on large amounts of nitrogen fertilizer to grow
B
are important to the carbon cycle
C
are able to fix nitrogen from the atmosphere
D
both 1 & 3
10) In order for water to change from a vapor to a liquid, this has to happen
A
energy has to be released by the molecules
B
the molecules need to speed up
C
the molecules need to move farther apart
D
energy has to be absorbed by the mol;ecules
*select an answer for all questions
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