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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
all are correct
B
nitrates
C
nitrites
D
nitrogen gas
2) The carbon cycle depends primarily on these 2 processes
A
infiltration & respiration
B
transpiration & decomposition
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
evaporation, precipitation, runoff, condensation
D
precipitation, evaporation, condensation, runoff
4) Transpiration is the process in which:
A
puddles evaporate into clouds
B
a new universe is formed
C
people breathe in air and exhale carbon dioxide
D
water vapor moves from living plants into the atmosphere
5) The water cycle is
A
the constant movement of water from the atmosphere to the earth and then back to the atmosphere
B
the tendency for water to travel in circles
C
a new type of 2 wheeled vehicle powered by hydrogen & oxygen
D
the movement of water from high areas to low areas
6) The process of denitrification converts ammonia to:
A
nitrites
B
rain
C
nitrates
D
urea
7) Water returning to earth from the atmosphere is called:
A
precipitation
B
condensation
C
percolation
D
evaporation
8) Humans excrete this form of Nitrogen
A
nitrogen gas
B
nitrites
C
ammonia
D
nitrates
9) Legume plants
A
depend on large amounts of nitrogen fertilizer to grow
B
are able to fix nitrogen from the atmosphere
C
both 1 & 3
D
are important to the carbon cycle
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 move farther apart
C
the molecules need to speed up
D
energy has to be absorbed by the mol;ecules
*select an answer for all questions
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