I agree with the answer above - boreal forests are the kind of forests that remain green all year, because evergreen trees can be found there. Opposite of this, temperate forests do not stay green all year, because they have deciduous trees, which means their leaves fall off.
Answer:
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.