An imaginary line that crosses Ecuador
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How, Why And When The United States Entered The War. Although many countries were drawn into the conflict of World War I, the United States maintained a policy of isolationism advocated by President Wilson.
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A climate model predicts future temperatures. This model was developed by several climate modeling research groups, including NASA's Goddard Institute for Space Studies. It is crucial that we continue to collect data and improve models, increasing their accuracy to refining our knowledge of climate and weather.
