Thirty percent of the Earth is covered by land.
The Indian Ocean is the largest ocean
Approximately 70 % of the Earth is covered by water.
The mid-ocean ridges are the longest mountain ranges on the Earth
Abyssal plain
Trench
Volcanic island
Volcanic island
Seamount
Continental slope
Abyssal plain
Seamount
Trench
Continental shelf
Trench
Seamount
Volcanic island
Trench
Abyssal plain
Continental shelf
Drone
Cyborge
Bionic
A sonar machine
A ship
A satellite
A
B
C
D
A
B
C
D
Atlantic Ocean
Arctic Ocean
Indian Ocean
Pacific Ocean
Aral Sea
True
False
Guyots
Deep-ocean trenches
Mid-ocean ridges
Continental slopes
None of the above
The deepest part of the ocean
Trenches are distinctive of convergent boundaries
The deepest ocean depth ever sounded was in the Challenger Deep of the Mariana Trench.
35798 ft is approximately 8.5 miles.
50, continental margin, 40, location
40, continental shelf, 20, location
30, mid-ocean ridges, 10, location
120, continental slope, 5, location
50 %
30 %
70 %
40 %
Sonar
Laser
Rope
Submersible
Anartic Ocean
Arctic Ocean
Dead Sea.
Atlantic Ocean
Indian Ocean
Pacific Ocean
Thethys Sea
Continental margin
Seamounts
Abyssal plains
Continental shelf
Microwave waves.
Echo sounding.
A pulmonary embolism.
Sonar
Divers
Photographs
Satellite
Reefs of Bora Bora
Great Barrier Reef
Cozumel Reefs
Overfishing
2 degrees increase in the ocean water
Siltation
Cooler water temperatures