Which human activity might increase biodiversity?

Planting wild flowers is a human activity that can significantly increase biodiversity. By introducing native wildflowers into an area, you create habitats and food sources for a variety of species, including pollinators like bees and butterflies, as well as birds and other wildlife that rely on these plants for shelter and sustenance. This action can enhance the ecological balance by supporting local ecosystems, promoting interactions among different species, and fostering a more diverse array of plant and animal life in the environment.

In contrast, building a commercial mall, removing natural habitats, and clearing forest land typically result in habitat destruction or alteration, which can lead to a decrease in biodiversity. These activities disrupt ecosystems, displace wildlife, and can create conditions that favor invasive species over native ones, ultimately harming the rich variety of life in those areas.