Answer:
They compare quantities for particular categories. View the frequency distribution graph about people who regularly use a specific cell phone app
<span>His opportunity cost is to give up the next best thing, in this case the digital camera. It is called a trade-off between cell phone and digital camera. But I could not imagine that it is a big one, compared to efficiency and equality.</span>
Surface winds are in the troposphere, and jet streams are winds that are located in the stratosphere.
C. convection currents in the earth’s core cause the tectonic plates to shift.
