Ocean

Question 1

Pacific Ocean

Answer 1

largest and deepest of Earth’s oceanic divisions

Question 2

Atlantic ocean

Answer 2

second largest of the world’s oceans with a total area of about 106,460,000

Question 3

Indian ocean

Answer 3

third largest of the world’s oceanic divisions, covering 70,560,000 km²

Question 4

Arctic ocean

Answer 4

he smallest and shallowest of the world’s five major oceans

Question 5

Southern Ocean

Answer 5

also known as the Antarctic Ocean or the Austral Ocean

Question 6

salinity

Answer 6

is the saltiness or amount of salt dissolved in a body of water.

Question 7

surface zone

Answer 7

layer of the ocean is known as the epipelagic zone

Question 8

thermocline

Answer 8

a steep temperature gradient in a body of water such as a lake

Question 9

deep zone

Answer 9

a zone of the world’s oceans occupying intermediate position between the abyssalpolegic region and the sea bed

Question 10

water cycle

Answer 10

also known as the hydrological cycle or the hydrologic cycle

Question 11

evaporation

Answer 11

type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase

Question 12

condensation

Answer 12

is the change of the physical state of matter from gas phase into liquid phase

Question 13

precipitation

Answer 13

is any product of the condensation of atmospheric water vapor

Question 14

continental shelf

Answer 14

is an underwater landmass which extends from a continen

Question 15

continental slope

Answer 15

is an underwater landmass which extends from a continent,

Question 16

continental divide

Answer 16

of the Americas is the principal, and largely mountainous,

Question 17

abyssal plain

Answer 17

is an underwater plain on the deep ocean floor, usually found at depths between 3,000 metres

Question 18

mid-ocean ridge

Answer 18

an underwater mountain system formed by plate tectonics

Question 19

rift valley

Answer 19

a large elongated depression with steep walls formed by the downward displacement of a block of the earth’s surface

Question 20

seamount

Answer 20

is a mountain rising from the ocean seafloor that does not reach to the water’s surface

Question 21

ocean trench

Answer 21

are topographic depressions of the sea floor, relatively narrow in width

Question 22

plankton

Answer 22

are the diverse collection of organisms that live in large bodies of water and are unable to swim against a current

Question 23

nekton

Answer 23

aquatic animals that are able to swim and move independently of water currents.

Question 24

benthos

Answer 24

is the community of organisms that live on, in, or near the seabed

Question 25

desalination

Answer 25

is a process that extracts mineral components from saline wate