DIRECTIONS Read each sentence and fill in the blank with the word from the word bank that best completes the sentence.
1. During the
people made tools that were smaller and more
complex than those made during the Old Stone Age.
2. During the
huge sheets of ice were formed from ocean water,
so ocean levels were lower than they are now.
3. A
is a strip of land that connects two continents.
4. In response to the Earth's changing climate and geography, people began to

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