Lots of people worldwide still do use the lunar calendar. Actually, before the romans came, the ancients used the lunar calendar. We don't use it anymore because it isn't useful. We prefer months of equal days, which is not the lunar calendar.
Because the silt (dirt particles) in muddy water eventually settles out, the muddy water is a __suspension__ .
Answer:
A
The answer to this question is circadian rhythm. A person who has a job that requires working all night and sleeping during the day will end up fighting his or her natural circadian rythm. Hope it helps!
