Why is determining the physiological time of death often difficult? (think about the surround factors outside the body to get started)

The dietary guidelines for americans recommend (a) avoiding smoking. (b) engaging in aerobic exercise for 60 minutes at least five days a week. (c) making all of your grain choices whole grains. (d) increasing your intake of fruits and vegetables.

What economic effects might result from the depletion of groundwater supplies from the ogallala aquifer? need to know asap

Christopher came down with chicken pox after spending time in his child’s day care. the chicken pox represents what link in the chain of transmission in this scenario?