What are some intervening opportunities? (economic)

An intervening opportunity is an alternative supply point. In the example of the concert, the supply point is where the concert is being held. If you could attend the concert somewhere more convenient, that would be an example of an intervening opportunity.

the following sets of characteristics describe what we know about the outer plants is c. rocky surface, closet to the sun and larger in size

answer; round wood logs, building materials like (plywood),also pulp and paper products;