QUESTION: answer this: how long was america's involvement in the vietnam war??

ANS: 20 long years

QUESTION: answer this: nutrients needed in large amounts for the human body are known as??

ANS: macronutrients

QUESTION: answer this: on how many different continents have the winter olympics games been held??

ANS: three

QUESTION: answer this: when did harry potter and the deathly hollows come out??

ANS:
21 July 2007