The fishing techniques of bottom trawling and dredging involves dragging huge, heavy nets across the ocean floor. These techniques are more effective than traditional fishing techniques. However, the nets damage the ocean floor and fishing boats empty wastewater into the sea. Which adverse effects do bottom trawling and dredging have on the biodiversity of marine environments? Select all that apply.
Choose all that apply:

Overexploitation

Pollution

Overpopulation

Introduction of invasive species

Habitat destruction