QUESTION: answer this: when did the exxon valdez oil spill occur??

ANS: March 24, 1989


QUESTION: answer this: when do baby start to open their eyes??

ANS: after seven to ten days


QUESTION: answer this: when did catalytic converters become mandatory in us??

ANS: 1975


QUESTION: answer this: in 1867 the united states purchased alaska from what country??

ANS:
the Russian Empire