Abeka Science Gr.8/Quiz#16

Underwater mountain range

• Mid-ocean ridge
• Abyssal plain

• Rift

• Hadal zone

Huge valley where the crust appears to be separating.

• Rift

• Habal zone

• mid- ocean ridge

• Seamount

Level deep-ocean floor

• Abyssal plain
• Atoll

• Seamount

• Mid- ocean ridge

Underwater mountain

• Oceanic peak
• Seamount
• Submarine
• Undersea hill

Circular coral-reef island

• Plateau
• Barrier

• Fringing

• Atoll

What is the underwater mountain chain that stretches down the middle of the Atlantic ocean?

• South Pacific Ridge
• Arctic Ocean Ridge
• Indian Ocean Ridge
• Mid-Atlantic Ridge

What are the deep depressions that contains the oceans?

• mountain ranges
• ocean basins
• desert plains
• volcanic islands

What are the deep depressions that contains the oceans?

• Deserts
• Mountain ranges
• Canyons
• Ocean basins

What is the gently sloped region that stretches away from the continental slope?

• ocean trench
• continental shelf
• continental rise
• mid-ocean ridge

What is the deepest known points in the sea?

• Indian Trench
• Pacific Trench
• Challenger Deep

  (or Mariana Trench)

• Atlantic Trench