How can you prevent insomnia?
a. go to bed sometime before midnight.
b, don't drink energy drinks or drinks containing caffeine before bed.
c. exercise strenuously in the late evenings.
d. you can't prevent insomnia.

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

i hope this