The upper and lower control limits for a component are 0.150 cm. and 0.120 cm., with a process target of .135 cm. The process standard deviation is 0.004 cm. and the process average is 0.138 cm. What is the process capability index

You can tell by just looking at it

Answer(d) it has many buyers and many sellers and no single buyer or seller can influence the price;

Combining the emissions released by fossil fuel burning and  the carbon released via land use change, we get a total of 8.7 gt. since the problem states that the oceans "take up" or sequester  2.4 gt carbon  per year, we subtract that value from 8.7 gt, leaving us with 6.3 gt of carbon. since the problem states that 3.4 gt carbon dioxide emissions end up in the atmosphere, the "missing sink" of carbon takes up 2.9 gt, a value we got by subtracting the 3.4 gt amount recorded from the 6.3 gt carbon left available after the oceans sequester the carbon dioxide.