Which of the following is not a factor that has contributed to agricultural success in the us?
a.

expansive infrastructure and mechanized equipment
b.

access to expensive chemical fertilizers and pesticides
c.

controlled population growth
d.

the prohibition of hybridized crops

May consider a group  g=({0,1},+)g=({0,1},+)where  ++  will work as the xor operator like we work in boolean algebra. note here, that ‘00’ and ‘11’ are not the usual 0 and 1 that we work with everyday. the elements are  called  ‘00’ and ‘11’ and  may not mean  zero (nothing) and one (single). ‘00’ is the identity for the given binary operator +, meaning that any element operated with ‘00’ gets us that element itself.  for a set  ss  in  g′g′  having more elements than just  {0,1}{0,1}  the values for  a+b∈sa+b∈s, such that  a∈s,b∈sa∈s,b∈s, have to be first defined, only then can you determine the value of  1+11+1. the answer could possibly have been  22  if oanswer is25,000

C. naturally in the environment

Iwould say d. eye contact and body language because you aren’t using any spoken communication. hope this : )

Ca mega city if i’m not mistaken