In experiments, participants averaged 12 or more hours of sleep a day for the first few days of unrestricted sleep. they then settled back to 7.5 to 9 hours of sleep a day. the unusually lengthy sleep time of the first few days suggests that participants began these experiments with
a) a sleep debt.
b) narcolepsy.
c) sleep apnea.
d) low melatonin levels.

Prices for products became more affordable as a result of new forms of ,witch got things to market faster and cheaper

As you drive in to school, you hear a random radio-show caller arguing that sun exposure really has not been shown to cause skin cancer and that some research suggests that skin cancer is completely genetic and not related to sun exposure at all. at the time, you think that this is a silly argument and that the caller does not know what she is talking about. however, two months later, you are outside without wearing sunscreen, and you find yourself remembering that you had read something about how the sun actually does not cause skin cancer. this process is evidence that has influenced your attitude

From where do ocean waves obtain their energy