What are the Four major factors that allowed farmers to dominate hunters and gatherers?This can be found in Chapter 6

What Chapter 6 is really talking about is why people chose
to farm rather than to continue as hunter-gatherers.  Diamond argues that there are four
reasons why they made this choice:

1. Availability
   of wild food.  He says that many kinds of wild foods were becoming less available over
   time.  This made farming a more rewarding lifestyle.


2. At
   the same time, more plant species were becoming
   domesticable.


3. People were developing more technology for
   harvesting and storing food.  As these technologies built up, they helped make farming
   more rewarding.


4. Populations grew and that made farming
   necessary.  As groups started to farm a little their populations grew.  Once this
   happened, they had to farm more to continue to support these larger populations.