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Carbon And Nitrogen Cycles
Test Description: Use this to learn about the carbon and nitrogen cycles.
Instructions: Answer all questions to get your test result.
1) What is photosynthesis?
A
The process in which an organism's remains are eaten by decomposers.
B
The process in which organisms breathe.
C
The process in which plants make their own food.
D
The process in which organic material burns.
2) Animals breathe in oxygen and release carbon dioxide during ____.
A
photosynthesis
B
respiration
C
decomposition
D
combustion
3) What is the name of the process that burns fossil fuels?
A
respiration
B
decomposition
C
combustion
D
photosynthesis
4) Carbon dioxide is continuously being dissolved in the ocean through the process of_____/
A
diffusion
B
sublimation
C
decomposition
D
respiration
5) ____________ are compounds that are made of nitrogen and oxygen.
A
nitrates
B
carbon dioxide
C
ammonia
D
bacteria
6) The process of converting nitrogen into nitrates that organisms can use is called _____.
A
nitrogen fixation
B
photosynthesis
C
diffusion
D
respiration
7) What do plants do with the nitrates they absorb?
A
use it in respiration
B
use it in photosynthesis
C
build proteins
D
kill other plants
8) Organisms that break down dead plants and animals and release nitrogen into the atmosphere are called
A
bacteria
B
animals
C
nitrates
D
plants
9) Which organisms need nitrates to survive?
A
plants
B
animals
C
all living organisms
D
bacteria
10) Which cycle includes photosynthesis and respiration?
A
Carbon-Oxygen Cycle
B
Rock Cycle
C
Carbon Cycle
D
Nitrogen Cycle
11) The cycling of carbon between the living and non-living parts of the Earth system is an important part of which process?
A
Methane entering the atmosphere from volcanic activity.
B
Herbivores digesting plant material to get nutrients.
C
Condensation of water vapor leading to cloud formation.
D
Plants and animals exchanging gases with the atmosphere.
12) Which cycle included bacteria?
A
Water Cycle
B
Nitrogen Cycle
C
Carbon-Oxygen Cycle
D
Rock Cycle
*select an answer for all questions
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