CHEMISTRY

Question 6 of 10 10.0 Points

How many kilograms of carbon are stored in a 160 kilograms log?

[removed] A.72  
[removed] B.80  
[removed] C.23  
[removed] D.56  

 

Question 7 of 10 10.0 Points

To how many kilograms of CO2 do 5 kilograms of dried tree correspond?

 

[removed] A.10.03  
[removed] B.4.75  
[removed] C.8.25  

 

[removed] D.6.32

Question 8 of 10 10.0 Points

In the lab activity, why is the allometric equation important to us?

 

[removed] A.Because it enables us to identify the photosynthetic efficiencies, determining the amount of CO2 processed by each individual tree  
[removed] B.Because it allows us to calculate the biomass of a tree by measuring only the diameter of the trunk at the base  
[removed] C.Because it compensates for the human errors resulted during the measuring stage  
[removed] D.Because it allows us to measure the biomass of a tree using only one instrument, making the overall plot measurements fast and effective

 

Question 9 of 10 10.0 Points

If the average biomass of a 10m x 10m plot is 2057 kg, how much carbon is stored in the plant tissues?

[removed] A.1,045.32 kg  
[removed] B.734.28 kg  
[removed] C.578.34 kg  
[removed] D.925.65 kg

 

Question 10 of 10 10.0 Points

If the amount of carbon stored in the plant tissues of a certain plot is 5734 kg, how much CO2 has that plot removed from the atmosphere?

[removed] A.21,043.78 kg of CO2  
[removed] B.10,467.22 kg of CO2  
[removed] C.34,295.64 kg of CO2  
[removed] D.9,232.25 kg of CO2

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