The total amount of carbon fixed into organic matter through photosynthesis (or chemosynthesis) in a given unit of time is known as Gross primary production.
<h3>What is Gross primary productivity?</h3>
Gross productivity generally is the rate of energy capture.
Net efficiency is lower: its net efficiency is balanced for the vitality utilized by the living beings in respiration/metabolism, so it reflects the sum of vitality put away as biomass.
The whole vitality settled by plants (autotrophs) in a community through photosynthesis is alluded to as net essential efficiency (GPP). 
Since all the vitality settled by the plant is changed over into sugar, it is hypothetically conceivable to decide a plant’s vitality take-up by measuring the sum of sugar delivered.
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Answer and Explanation:
Given that Bond A pays $4,000 in 14 years and Bond B pays $4,000 in 28 years, and that the interest rate is 5 percent, we see that Using the rule of 70, the value of Bond A is 70/5 = doubled after 14 years. Now if its value is 4000 in 14 years, its current value must be halved. Hence the value is 2000.
Sinilarly the value of Bond B is approximately one fourth now because it pays 4000 in 28 years. Hence its value is 4000/4 = 1000.
Now suppose the interest rate increases to 10 percent. Hence the doubling time is 70/10 = 7 years
Using the rule of 70, the value of Bond A is now approximately 1,000 and the value of Bond B is 250
Comparing each bond’s value at 5 percent versus 10 percent, Bond A’s value decreases by a smaller percentage than Bond B’s value.
The value of a bond falls when the interest rate increases, and bonds with a longer time to maturity are more sensitive to changes in the interest rate.
 
        
             
        
        
        
Answer:
c) $222,500 $313,500
Explanation:
Calculation for cost-to-retail ratio
COST
Beginning inventory $ 30,000
Add: Purchases $190,000
Add: Freight-in $2,500 
Cost=$222,500 
 
RETAIL 
Beginning inventory $ 45,000
Add: Purchases $260,000
Add: Net markups $8,500
Retail = $313,500
Therefore the cost-to-retail ratio will be $222,500 $313,500
 
        
             
        
        
        
Answer:
600 Units
Explanation:
Given:
Opening balance of inventory = 0 units
Ending balance of the month = 800 units
Finished units during the month = 1,200 units
Completed work in progress = 75% = 0.75
Ending work in process inventory = ?
Computation of ending work in process inventory:
Ending work in process inventory = Ending balance of the month × Completed work in progress
= 800 × 0.75
= 600 units