Physical. Hope this was helpful for you!!
Answer: A). 2.7 million people per year
Explanation:
From 2000 to 2010 is 10 years. Change in population in 10 years = population at the beginning of 2010 minus the population at the beginning of 2000. This is:
309 million -282 million = 27 million.
Therefore average change in population person year = 27 million/10 = 2.7 million per year
I am new to biology but based on the looks of your attachment I would say that due to less things in the chain it would be easier to use them because they wouldnt have as long a process meaning they could produce more.