"the nimby syndrome presents itself when discussing"

The NIMBY syndrome presents itself when discussing drug treatment, landfills and jails.  NIMBY is an acronym for “Not In My Back Yard.” Person with NIMBY resists unwanted development, such as manufacturing plants, prisons, power companies, or chemical companies in his or her own neighborhood or town. Their state of mind is called Nimbyism.

The answer would be sand and gravel