1.
Scientists believe that people long ago needed food, so
they followed herds of mammoths to North America.
___________________2.
People long ago used weapons because they needed to find
food. ____________________
3. Because they wanted to
learn about life long ago,
archaeologists studied artifacts. ________________
4. Hunter-gatherers
learned to grow food, and as a result,
their lives became easier. _________________
5. The glaciers began to melt
and therefore the land bridge
between Asia and North America became flooded.
__________________
|
