Oceans

Question 1

The largest and deepest of Earth’s five oceanic divisions.
Fact: Covers 30% of the earths surface

Answer 1

Pacific Ocean

Question 2

Second-largest of the world’s five oceans, with an area of about 106,460,000 km².
Fact: Covers 20% of the earths surface.

Answer 2

Atlantic Ocean

Question 3

Third-largest of the world’s five oceanic divisions, covering 70,560,000 km² or ~19.8% of the water on Earth’s surface.
Fact: It is bounded by Asia to the north, Africa to the west and Australia to the east.

Answer 3

Indian Ocean

Question 4

Smallest and shallowest of the world’s five major oceans.
Fact: Some oceanographers call it the Arctic Mediterranean Sea.

Answer 4

Arctic Ocean

Question 5

Also known as the Antarctic Ocean, comprises the southernmost waters of the world ocean.
Fact:

Answer 5

Southern Ocean

Question 6

A measure of the amount of dissolved salts in a given amount of liquid.

Answer 6

Salinity

Question 7

The uppermost level of the land or sea.

Answer 7

Surface zone

Question 8

A steep temperature gradient in a body of water such as a lake, marked by a layer above and below which the water is at different temperatures.

Answer 8

Thermocline

Question 9

Extending or situated relatively far down from a surface.

Answer 9

Deep zone

Question 10

The continuous movement of water from the ocean to the atmosphere to the land and back to the ocean.

Answer 10

Water Cycle

Question 11

The process of turning from liquid into vapor.

Answer 11

Evaporation

Question 12

Water which collects as droplets on a cold surface when humid air is in contact with it.

Answer 12

Condensation

Question 13

The action or process of precipitating a substance from a solution.

Answer 13

Precipitation

Question 14

The gently sloping section of the continental margin located between the shoreline and the continental slope.

Answer 14

Continental shelf

Question 15

The steeply inclined section of the continental margin located between the continental rise and the continental shelf.

Answer 15

Continental slope

Question 16

The gently sloping section of the continental margin located between the continental slope and the abyssal plain.

Answer 16

Continental rise

Question 17

A large, flat, almost level area of the deep-ocean basin.

Answer 17

Abyssal plain

Question 18

A long, undersea mountain chain that forms along the floor of the major oceans.

Answer 18

Mid-ocean Ridge

Question 19

A long, narrow valley that forms as tectonic plates separate.

Answer 19

Rift Valley

Question 20

A submerged mountain on the ocean floor that is at least 1,000 m high and that has a volcanic orgin.

Answer 20

Seamount

Question 21

A steep, long depression on the deep-sea floor that runs parallel to a chain of volcanic islands or a continental margin.

Answer 21

Ocean Trench

Question 22

The mass of mostly microscopic organisms that float or drift freely in freshwater and marine environments.

Answer 22

Plankton

Question 23

All organisms that swim actively in open water, independent of currents.

Answer 23

Nekton

Question 24

The organisms that live at the bottom of the sea or ocean.

Answer 24

Benthos

Question 25

The process of removing salt from ocean water.

Answer 25

Desalination