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Ecology
Test Description: Review
Instructions: Answer all questions to get your test result.
1) 78% of the air consists of
A
Dust
B
Oxygen gas
C
Nitrogen gas
D
Carbon Dioxide
2) Decomposers
A
smell good
B
break down molecules in dead organisms
C
regenerate
D
create gases in the atmosphere
3) Nitrates
A
are changed into nitrogen gas by cells
B
are changed into nitrogen gas by bacteria
C
are changed into nitrogen gas by the sun
D
are changed into nitrogen gas by the nucleus
4) Carbon in dead organisms decomposes and turns into
A
nitrogen
B
oxygen
C
fossil fuels
D
carbon dioxide
5) On major reservoir of carbon dioxide is the
A
mountains
B
ocean
C
grass
D
puddles
6) _______ is where plants turn carbon dioxide into energy rich carbon
A
Photosynthesis
B
Regeneration
C
Maturation
D
Global warming
7) The main energy sournce of the water cycle comes from the
A
earth
B
water
C
sun
D
air
8) Plants give off water into the atmosphere by the process called
A
transformation
B
dialation
C
reflection
D
transpiration
9) The processes of the water cycle are a _________ change
A
physical
B
chemical
C
mixed
D
reactive
10) Plants _____ the nitrates
A
form
B
release
C
use
D
mix
*select an answer for all questions
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