What might be difficult to compare presidents from different eras?

The value of the next best alternative given up is called ?

Which of the following might cause the inflation rate to spike up sharply? the purchasing power of the average consumer decreases due to a sluggish economy. plentiful rainfall and moderate temperatures result in good harvests of wheat and soybeans. the items in the cpi market basket change to account for changing consumer buying habits. prices on world oil markets rise steeply due to war in the middle east.

Reasons for factor mobility of a combine harvester, cotton, an oil platforn and a woodland