Identify two ways that carbon (usually in the form of CO2) enters the atmosphere.
A. photosynthesis
B. cellular respiration
C. feeding
D. combustion
E. Formation of a fossil fuel like peat
Process D on the diagrm uses CO2 from the atmosphere. Identify the process labeled D.
A. combustion
B. photosynthesis
C. respiration
D. decay
What oranisms carry out the process labeled D?
A. animals
B. bacteria
C. plants
D. fungi
Wastes and dead organisms must be broken down in order for their components to be used again. What organisms carry out decomposition?
A. herbivores
B. plants
C. fungi, bacteria, and worms
D. carnivores
What is the purpose of decomposition?
A. to recycle nutrients back into the soil
B. to convert carbon dioxide into sugar
C. to break down glucose into ATP
D. to make oxygen
Not all dead organisms are acted on by decomposers. Instead of being immediately recycled, the carbon from some organisms is kept in a type of long-term storage or carbon sink. Click on 3 materials that are carbon sinks.
A. coal
B. animals
C. buildings
D. peat
E. natural gas
Cellular respiration, decomposition, combustion, and photosynthesis are processes that drive which of the following cycles?
A. carbon cycle
B. nitrogen cyle
C. phosophorus cycle
D. transcription
Leaves fall from trees in autumn. The carbon in these leaves is returned to the atmosphere through which of the following processes?
A. condenstation
B. decomposition
C. photosynthesis
D. transcription
Carbon cycles through all of the following except
A. biosphere
B. atmosphere
C. hydrosphere
D. ecosphere
Burning fossil fuels is known as
A. decomposition
B. combustion
C. fermentation
D. translocation
Which of the following are mainly cycled through the processes of photosynthesis and cellular respiration?
