Which device is used to harvest coral?

• A. Divers
• B. Minisubs
• C. Trawlers
• D. Drones

Answer: (B)

Harvesting coral works best with a tool that can operate right at the reef and physically retrieve pieces with care. A minisub fits this role as a small underwater vehicle designed to maneuver around delicate coral colonies and bring back specimens using built-in collection tools. It allows precision and safety in depths where divers or other methods wouldn’t be as practical.

Divers are people, not devices, so they aren’t the answer to “which device.” Drones aren’t typically used for underwater harvesting because they’re not built to lift and extract coral directly. Trawlers are bulk fishing vessels that drag nets and can damage reefs, making them unsuitable for selective coral harvesting. So the minisub is the most appropriate device for this task.