The video discusses the vast diversity of deep sea creatures, with over 177,000 known species and potentially millions more undiscovered. It highlights the challenges of exploring the ocean depths, requiring advanced technology like submersibles. Historic dives, such as the 1960 Trieste expedition and James Cameron's 2012 dive, are mentioned. Modern exploration uses remote-controlled robots to withstand high pressure and capture footage.

What is the estimated number of known deep-sea species?

• Exactly 200,000

• Less than 100,000

• About 50,000

• Over 177,000

How does our knowledge of the ocean floor compare to that of the Moon and Mars?

• We know more about the ocean floor

• We know more about the Moon and Mars

• We know equally about all three

• We know nothing about the ocean floor

What is a submersible?

• A sturdy steel vehicle for deep-sea exploration

• A type of coral

• A type of fish

• A remote-controlled robot

What was the name of the submersible used in 1960 to explore the Mariana Trench?

• Nautilus

• Trieste

• Challenger

• Endeavour

Who is James Cameron in the context of deep-sea exploration?

• A National Geographic Explorer and filmmaker

• A submersible engineer

• A marine biologist

• A deep-sea creature

How long did it take the Trieste to reach the bottom of the Challenger Deep?

• 5 hours

• 7 hours

• 10 hours

• 3 hours

What technological advancement did James Cameron use for his deep-sea dive?

• A wooden boat

• A space shuttle

• Advanced submersible technology

• A hot air balloon

What is the depth of the Challenger Deep?

• Over 35,000 feet

• 20,000 feet

• 15,000 feet

• 10,000 feet

What recent technology is used for deep-sea exploration?

• Submarines

• Remote-controlled robots

• Drones

• Satellites

What features do the remote-controlled robots have for deep-sea exploration?

• Solar panels

• Lights and cameras

• Wings and propellers

• Wheels and tracks