Which BEST describes the mainland of Greece geographically? A. Flat desert
B. Hilly and covered in snow
C. Mountainous peninsula D. Many rivers, deltas and valleys

true.

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in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

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use wikipedia, i think they have this.