A Japanese submarine discovered the world's largest underwater lava flow near Peru, stretching 40 km along the East Pacific Ridge. The Shinkai submersible, capable of reaching depths of 6500 meters, aided the research team. Equipped with high vision cameras and robotic arms, it can collect specimens during nine-hour missions. The lava flow, far from seismic plate edges, challenges current understanding of volcanic activity and continental drift.

What significant discovery did the Japanese submarine make near Peru?

• A sunken ancient city

• A new species of marine life

• The largest underwater lava flow

• The deepest ocean trench

What is the maximum depth the Shinkai submersible can reach?

• 4500 meters

• 8000 meters

• 3000 meters

• 6500 meters

What unique feature does the Shinkai submersible have?

• Solar-powered engines

• Miniature high vision cameras

• Self-repairing hull

• Underwater internet connectivity

How long can individual trips to the ocean floor last in the Shinkai submersible?

• Nine hours

• Six hours

• Three hours

• Twelve hours

Why is the location of the lava flow discovery surprising to scientists?

• It is far from any seismic plate edges

• It is in a protected marine reserve

• It is near a known volcanic hotspot

• It is in a heavily trafficked shipping lane