Deep Sea Exploration

What is the Mariana Trench?

• A type of fish found in the deep sea

• A deep crack in the Pacific Ocean

• A species of snailfish

• A research institute in Japan

What is the purpose of the expedition mentioned in the text?

• To explore the Mariana Trench

• To study giant squids

• To develop technology for deep sea exploration

• To find new species of fish

What is the depth of the Mariana Trench?

• 1000 meters

• 2000 meters

• 6000 meters

• 8000 meters

What is the main challenge for animals living in the deep sea?

• Extreme cold temperatures

• High water pressure

• Lack of sunlight

• Limited food availability

What is the main source of food for deep sea creatures?

• Seaweed

• Plankton

• Driftwood

• Animal carcasses

What is the purpose of the expedition's fish trap?

• To collect samples of driftwood

• To capture snailfish alive

• To study the behavior of amphipods

• To attract other deep sea creatures

How do deep sea creatures adapt to the lack of sunlight?

• They develop bioluminescence

• They rely on echolocation

• They have large eyes to see in the dark

• They hibernate for long periods

What technology is commonly used to explore the deep sea?

• Submersibles

• Satellites

• Diving suits

• Remote operated vehicles (ROVs)

Which of the following is a unique feature of the hadal zone?

• It is the warmest part of the ocean

• It has the highest concentration of marine life

• It is the deepest part of the ocean

• It is the most acidic part of the ocean

What adaptation helps deep sea creatures withstand high pressure?

• Thick skin

• Flexible bones

• Small size

• Gas-filled bladders