A pump is used to transport water from a reservoir at one elevation to another reservoir at a higher elevation. If the elevation difference increases by four times, the pump power required:

A) Increases by two times

B) Increases by four times

C) Increases by eight times

D) Increases by sixteen times

What is the chief metrological difference between measuring with a microscope and with an electronic comparator? a. the microscope is limited to small workpieces.a. the microscope is limited to small workpieces. c. the comparator can only examine one point on the workpiece. d. the microscope carries its own standard.