Answer: President Dwight Eisenhower proclaimed standards for flying the American flag at half staff on March 1, 1954. Prior to this date, there were no official rules for flying the flag at half staff, which led to policies that differed from area to area.
Explanation:
I'm not sure of his name, but it might have been Darius. If you want more info, search 'Gordian Knot'. There was supposedly a prophecy at the time stating that whoever could untie this immensely complicated knot that tied the king's horse yolk to his chariot would rule over Persia. When Alexander saw the knot he sliced it in two with his sword instead of trying to untie it. I'm pretty sure Darius (or whatever his name was)
I believe the answer is A, Pollution of the environment, hope this helps :)
Answer:
it would be d because i got it right on my test
Explanation: