Question 1313Navigation General

The correct answer is C) 0400 and 1600. In low latitudes, the diurnal (daily) variation of atmospheric pressure typically exhibits two lows, occurring around 0400 and 1600 local time. This is due to the influence of the solar heating cycle, which causes the atmosphere to expand during the day and contract at night, resulting in these pressure minima. The other options are incorrect because: A) 1000 and 2200 do not correspond to the observed pressure minima in low latitudes; B) noon is not when the lows occur; and D) noon and midnight do not match the actual timing of the pressure lows.