Final answer:
The statement that a worldwide loss of biodiversity is underway due to human activities is true, mainly because of habitat destruction and overexploitation of natural resources. The correct option is a.
Step-by-step explanation:
A worldwide loss of biodiversity is underway because of human activities, and this statement is true. Biodiversity will decline as the human population increases because of habitat loss, increased pollution, and climate change.
The main cause of this loss of biodiversity is habitat destruction through various activities of humankind, including farming, logging, fishing, and the construction of roads and buildings.
Increased human population leads to higher resource exploitation, resulting in unsustainable removal of resources from the environment. Proximate threats to biodiversity include habitat loss, overharvesting, the introduction of exotic species, and anthropogenic climate change. Option a. is the correct one.