Which of the following environmental protection issues is a direct result of human involvement?

The correct answer is D. All of the above.

Explanation: Each of the listed issues—pollution, invasive species, and biodiversity loss—can be directly attributed to human activities. Pollution results from industrial processes, waste, and chemicals used by humans. Invasive species are often introduced through human actions, such as global trade and travel. Biodiversity loss occurs due to habitat destruction caused by urbanization, agriculture, and overexploitation of resources. All of these factors are interconnected impacts of human involvement in the environment.