Ocean

Question 1

Pacific ocean

Answer 1

It covers more than 30% of the earth’s surface.

Question 2

Atlantic ocean

Answer 2

The Atlantic Ocean is the youngest of the five oceans

Question 3

Indian ocean

Answer 3

Indian Ocean is the third-largest Ocean in the world

Question 4

Arctic ocean

Answer 4

the shallowest and the smallest of the five oceans of the world

Question 5

Southern ocean

Answer 5

It has an average depth of 10,728 feet (3,270 metres) and a maximum depth of 24,383 feet

Question 6

Salinity

Answer 6

the concentrations of salts in water or soils.

Question 7

surface zone

Answer 7

Surface Zone restricts the display of surface models and their caps to zones around selected atoms or markers

Question 8

Thermocline

Answer 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.

Question 9

deep zone

Answer 9

extending or situated relatively far down from a surface.

Question 10

water cycle

Answer 10

the cycle of processes by which water circulates between the earth’s oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.

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

any liquid or frozen water that forms in the atmosphere and falls back to the earth.

Question 14

continental shelf

Answer 14

part of the continental margin which is between the shoreline and the shelf break or, where there is no noticeable slope

Question 15

continental slope

Answer 15

the slope between the outer edge of the continental shelf and the deep ocean floor.

Question 16

continental rise

Answer 16

a wide, gentle incline from a deep ocean plain (abyssal plain) to a continental slope

Question 17

abyssal plain

Answer 17

the largest habitat on earth

Question 18

mid-ocean ridge

Answer 18

a continuous range of underwater volcanoes

Question 19

rift valley

Answer 19

a lowland region that forms where Earth’s tectonic plates move apart, or rift

Question 20

Seamount

Answer 20

underwater mountains that rise hundreds or thousands of feet from the seafloor.

Question 21

ocean trench

Answer 21

Challenger Deep

Question 22

Plankton

Answer 22

usually microscopic, often less than one inch in length, but they also include larger species like some crustaceans and jellyfish

Question 23

Nekton

Answer 23

living organisms that are able to swim and move independently of currents

Question 24

Benthos

Answer 24

Clams, worms, oysters, shrimp-like crustaceans, and mussels are all examples of benthic organisms