The true statement is - Sympatric speciation only occurs in areas where there is local variation in environmental resources
Explanation:
Sympatric speciation means the evolution of new species from an ancestor species which are occupying in the same area and no geographical barrier takes place.
Overlapping of ranges takes place to the organism and old and new species are living i the same geographical region.
A dam diving a fish population could lead to allopatric speciation where geographical barrier causes formation of new species which are completely different from their ancestor species.
There are limited amounts of resources in a general area. Some civilizations may not have the ability to produce resources that they need. That makes 2 routes: 1) cooperation: They can cooperate with another people group that lives in a different region and trade with them 2) conflict: They can attack/raid another people group in a different region for the resources
