Titanic's Graveyard | Nat Geo Live

In what year did Dr. Robert Ballard's team return to thoroughly document the Titanic wreck?

• 1912

• 1985

• 1986

• 2000

How did Dr. Ballard's team create a full image of the Titanic wreck during their 1986 expedition?

• They used advanced digital cameras to stitch together images.

• They created a photo mosaic by combining thousands of film images.

• They used sonar to create a 3D model of the ship.

• They drew detailed sketches based on observations from a submersible.

What happened to the human bodies that sank with the Titanic to the deep ocean floor?

• They remained perfectly preserved due to the cold water.

• Deep-sea animals consumed their flesh, and their bones dissolved over time.

• They were carried away by strong underwater currents.

• They turned into fossils, leaving clear impressions on the seabed.

Why did the bones of the Titanic victims eventually disappear from the deep ocean floor?

• The extreme pressure at that depth crushed them.

• The deep-sea water was undersaturated in calcium carbonate, causing them to dissolve.

• Bacteria quickly decomposed all bone material.

• They were buried under layers of sediment over time.