Question 942Navigation General

The correct answer is A) barograph. A barograph is an instrument designed to maintain a continuous record of atmospheric pressure over time. It uses a pressure-sensitive aneroid cell to track changes in pressure and records this data on a graph or chart, providing a visual representation of the pressure trends. This makes the barograph the most appropriate instrument for continuously monitoring and recording atmospheric pressure data. The other options are incorrect because: B) An aneroid barometer measures atmospheric pressure but does not record it continuously. C) A thermograph records temperature, not atmospheric pressure. D) A mercurial barometer measures atmospheric pressure using a column of mercury, but does not provide a continuous record.