an efficient utilization of resources
The unknown has always fascinated and frightened people across the centuries. Folklore and legends stem from the fear of meeting something unknown. Something strange to our culture. The story of Roanoke is popular due to the fear and interest it excites. The fear comes from the thought that you, or someone you love, could have been a victim to the disappearance. It also interests people due to the fact that it is something unexplained. It shows people that not everything can be calculated and that unknown still exists. This plays on the detective in some people, increasing their interest.
neutrality
As the war in Europe erupted in 1914, the President of the United States, Woodrow Wilson, proclaimed an official policy of neutrality in regard to the war. That policy was hard to maintain, however, because the warring parties in Europe were battling over the seas and this affected shipping coming from the United States. Britain had blockaded Germany, and the Germans had responded by launching submarine (U-boat) warfare against vessels coming to deliver supplies to Britain. When the passenger liner <em>Lusitania </em>was sunk by the Germans in 1915, killing over 1,000 people including 120 Americans, the USA was almost drawn into the war at that point.
Answer:
Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.
