Why might some civilizations not have been part of the Neolithic Revolution?

Some did not have animals that could be domesticated around them.

The Neolithic Revolution was critical because it signified the transition to agriculture. It is believed that the civilization was driven largely by environmental changes--a gradual warming that allowed people to begin cultivating.

Explanation:

i am a little confused myself with what goes with the letters and what goes with the numbers but ill do my best to you

the cordillera states and grand canyon are along the southwest u.s. and northern mexican pacific.

the great plains and southwest desert are also the prairie and home to many earthquakes too .

the coastal plains have poor soil and many factories started in the south.

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