The amount of goods and services produced by an economy divided by the amount of resources used to make those goods and services, measures economic answer
a. consumer price index.
b. deflation.
c. inflation.
d. productivity.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.

straight or amphibians are homeothermic to thermal