Oceanography1

Oceans cover what percentage of the Earth's surface?

• 51%

• 61%

• 71%

• 81%

Geographers have identified how many major oceans?

• 3

• 4

• 5

• 6

The world's oceans, in descending order of size, are:

• Pacific, Atlantic, Indian, Southern, Arctic

• Pacific, Southern, Indian, Atlantic, Arctic

• Atlantic, Pacific, Indian, Arctic, Southern

Which major ocean is found between the continent of Africa and the Americas?

• Pacific

• Indian

• Atlantic

• Arctic

Which of the following statements is FALSE?

• Oceans help regulate temperatures by absorbing heat

• The ocean is one continuous body of water

• 97% of all water on earth is freshwater

• The hydrosphere represents all water on the earth's surface

SONAR technology helps navigate the ocean floor. SONAR stands for...

• Sound Oscillation Nautical Aquatic Radar

• SOund Navigation And Ranging

• SOund Nautical Aquatic Radar

The deepest ocean trench in the world is the Mariana Trench.

How deep is it?

• 8848 metres below sea level,

• 12,848 metres below sea level

• 10,994 metres below sea level

• 6,994 metres below sea level

What is the sunlit upper layer of the ocean known as?

• Epipelagic Zone

• Mesopelagic Zone

• Bathypelagic Zone

• Abyssopelagic Zone

What creepy and cool-looking deep sea fish is this?

• Viper fish

• Clownfish

• Barracuda

• Angler fish

Some deep sea creatures are characterised by bioluminescence.

What does this term refer to?

• The ability of organisms to produce their own food through chemical reactions in their body

• The ability of organisms to produce light through chemical reactions in their body

• The ability of organisms to absorb the immense pressure placed on their bodies at great ocean depths