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