02-15-2016, 05:43 PM
TLB wrote:
Eons ago in grade school our science teacher put a stick of margarine and a stick of butter on plates and placed them on the ledge outside our classroom window. Over time all sorts of things feasted on the butter while the oily margarine pool remained untouched.
Butter has water and milk solids in it. Water is necessary for life, and the milk solids are food.
Margarine is just fat.