Which one of the following statements is correct?
(a) Local atmospheric pressure is always lesser than standard atmospheric pressure
(b) Local atmospheric pressure depends upon the elevation of the locality only
(c) Standard atmospheric pressure is the mean atmospheric pressure at sea level
(d) A barometer reads the difference between local, and standard atmospheric
pressure
(a) Local atmospheric pressure is always lesser than standard atmospheric pressure
(b) Local atmospheric pressure depends upon the elevation of the locality only
(c) Standard atmospheric pressure is the mean atmospheric pressure at sea level
(d) A barometer reads the difference between local, and standard atmospheric
pressure