Biology

The human activity most likely to reduce ecosystem diversity is D.deforestation for urbanization.

Deforestation for urbanization involves clearing forests or other natural habitats to make way for cities, infrastructure, and human settlements. This process directly destroys ecosystems, disrupts habitat for wildlife, and reduces the overall biodiversity of the area. When forests and other natural habitats are cleared, species lose their homes, and the complexity of the ecosystem is reduced, leading to a decline in biodiversity.

In contrast:

A.Establishing nature reserves typically protects ecosystems and helps preserve biodive...