Which of the following is NOT a cause of extinction?

Increased genetic diversity is not a cause of extinction; rather, it is a factor that can help species survive and adapt to changing environments. Genetic diversity refers to the variety of genes within a population, which is crucial for the healthy functioning of ecosystems. A genetically diverse population is typically better equipped to withstand diseases, environmental changes, and other threats to its survival.

In contrast, over-hunting, advances in technology (particularly when they negatively impact habitats), and human population growth can directly contribute to extinction by destabilizing ecosystems, decreasing species populations, or destroying natural habitats. Thus, increased genetic diversity enhances the resilience of species, whereas the other factors listed can undermine it.