ocean

Question 1

Pacific ocean

Answer 1

The Pacific Ocean is the largest and deepest of Earth’s five oceanic divisions

Question 2

Atlantic ocean

Answer 2

The Atlantic Ocean is the second-largest of the world’s five oceans, with an area of about 106,460,000 km

Question 3

Indian ocean

Answer 3

The Indian Ocean is the third largest and youngest of the world’s oceans, covering about 20% of the Earth’s surface

Question 4

Arctic ocean

Answer 4

The Arctic Ocean is the smallest and shallowest of the world’s five oceans, but also the most mysterious and remote

Question 5

Southern ocean

Answer 5

comprises the southernmost waters of the world ocean, generally taken to be south of 60° S latitude and encircling Antarctica

Question 6

Salinity

Answer 6

the quality or degree of being saline

Question 7

surface zone

Answer 7

extends downward 200 meters or roughly 5% of the ocean’s average depth

Question 8

Thermocline

Answer 8

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

Question 9

deep zone

Answer 9

The cell density is lowest in this zone; chondrocytes are spheroidal in shape and are arranged perpendicular to the surface

Question 10

water cycle

Answer 10

biogeochemical cycle that describes the continuous movement of water on, above and below the surface

Question 11

Evaporation

Answer 11

the process of turning from liquid into vapor

Question 12

Condensation

Answer 12

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

Question 13

Precipitation

Answer 13

rain, snow, sleet, or hail that falls to the ground

Question 14

continental shelf

Answer 14

A continental shelf is the submerged edge of a continent, where the land slopes gently into the ocean

Question 15

continental slope

Answer 15

steep slope that is located between the seaward edge of the continental shelf and the abyssal plain

Question 16

continental rise

Answer 16

low-relief zone of accumulated sediments that lies between the continental slope and the abyssal plain

Question 17

abyssal plain

Answer 17

an underwater plain on the deep ocean floor

Question 18

mid-ocean ridge

Answer 18

Mid-ocean ridges are the longest mountain range on Earth, but mostly hidden underwater

Question 19

rift valley

Answer 19

linear shaped lowland between several highlands or mountain ranges created by the action of a geologic rift

Question 20

Seamount

Answer 20

large geologic landform that rises from the ocean floor that does not reach to the water’s surface

Question 21

ocean trench

Answer 21

Oceanic trenches are the deepest parts of the ocean floor, where two tectonic plates collide and one slides under the other

Question 22

Plankton

Answer 22

diverse collection of organisms found in water

Question 23

Nekton

Answer 23

aquatic animals that are able to swim and move independently of water currents. Often contrasted with plankton.

Question 24

Benthos

Answer 24

community of organisms that live on, in, or near the bottom of a sea, river, lake, or stream, also known as the benthic zone

Question 25

desalination

Answer 25

process that takes away mineral components from saline water