When the sun sets and it gets dark outside, this alerts the brain's pineal gland that it's almost time to go to sleep. The pineal gland, in turn, begins to secrete melatonin, a hormone that helps regulate the sleep-wake cycle. The next morning, melatonin levels drop, signaling to your body that it's time to wake up.
Making the world better, one answer at a time. The acronym DATA can stand for many things. One such is the Debt Aids Trade Africa and another is Do As Time Allows.ata is everything, the quesiton you asked consisted of data. data is the entity on which programs written or work. like library systems it is student details, book details â¦ on which program works.
VIRT stands for the virtual size of a process, which is the sum of memory it is actually using, memory it has mapped into itself (for instance the video cardâs RAM for the X server), files on disk that have been mapped into it (most notably shared libraries), and memory shared with other processes.