Water Cycle

Question 1

the only planet where water in its liquid form exists

Answer 1

Earth

Question 2

in other planets, water occurs in the form of _____ or _____

Answer 2

ice, vapor

Question 3

as seen from space, what are the colors of the earth?

Answer 3

blue and white

Question 4

why is earth blue and white?

Answer 4

because of water, snow, ice. and clouds on its surface

Question 5

The part of the earth’s subsystem containing the oceans, lakes, streams, underground water, and snow and ice

Answer 5

hydrosphere

Question 6

makes up about 71% of the earth’s surface.

Answer 6

hydrosphere

Question 7

However, _______ is also present in other subsystems.

Answer 7

water

Question 8

It exists as water vapor in the atmosphere, as an important constituent of minerals in the geosphere; and a fundamental component of living organisms in the biosphere.

Answer 8

water

Question 9

The existence of _______ in the different subsystems is part of the hydrologic cycle.

Answer 9

water

Question 10

also known as water cycle, is the movement of water around the Earth’s surface and its subsystems.

Answer 10

The hydrologic cycle

Question 11

consists of interconnected pathways and reservoirs.

Answer 11

The hydrologic cycle

Question 12

are the places where water resides for varying amount of time

Answer 12

Reservoirs

Question 13

are the processes that allow water to move between reservoirs and subsystems

Answer 13

pathways

Question 14

which maintains the total amount of water.

Answer 14

mass balance

Question 15

may occur on a local scale, such as the occurrence of flood and drought, but these are balanced out on a global scale.

Answer 15

flunctuations

Question 16

coming from the sun provides energy for the movement of water.

Answer 16

Heat

Question 17

the process in which liquid water changes into vapor

Answer 17

evaporation

Question 18

occurs in the oceans, surface water bodies, vegetation, and soil.

Answer 18

evaporation

Question 19

About _____ of water vapor in the atmosphere evaporates from the _______

Answer 19

80%, ocean

Question 20

the evaporation of water from the leaves and stems of plants, which contributes to about 10% of the water vapor in the atmosphere.

Answer 20

transpiration

Question 21

in high altitudes, ice can directly transform into water vapor in a process called _________

Answer 21

sublimation

Question 22

enters the atmosphere and moves with the flowing air.

Answer 22

water vapor

Question 23

the change from vapor into liquid or solid, to occur.

Answer 23

condensation

Question 24

group together and form clouds

Answer 24

water droplets

Question 25

When water. droplets or ice crystals in the clouds become large and heavy, ____________ occurs.

Answer 25

precipitation

Question 26

transfers water from the atmosphere to the Earth's surface in liquid or solid form as rain, snow, or hail.

Answer 26

precipitation

Question 27

Rain that falls into the land surface penetrates the soil in a process called _________.

Answer 27

infiltration

Question 28

When the soil becomes saturated, rainwater may flow over land as __________ and will join other bodies of water such as streams, lakes, and oceans.

Answer 28

surface runoff

Question 29

Part of the water that infiltrates the ground will be stored as _____________, while some will be absorbed by plants or will directly evaporate.

Answer 29

groundwater

Question 30

usually remains on the ground for one or more seasons and eventually melts and contributes to the water in streams.

Answer 30

snow

Question 31

_______ is locked up as ice in glaciers for a long time

Answer 31

Water

Question 32

Given the right conditions, the ____________ will eventually melt, evaporate, and return to the oceans.

Answer 32

glaciers

Question 33

saltiness of saltwater

Answer 33

salinity

Question 34

stored in glaciers and situated in inaccessible areas such as the polar regions and high mountains

Answer 34

freshwater reservoir

Question 35

consists largely of recrystallized snow

Answer 35

glaciers

Question 36

a soil, rock, or sediment that is frozen for more than to consecutive years

Answer 36

permafrost

Question 37

the frozen ground varies in thickness from a few meters to about 150 m.

Answer 37

permafrost

Question 38

most of this is found in polar regions, although they may exist in high-altitude regions

Answer 38

permafrost

Question 39

include the streams, lakes, and wetlands where water from rainfall, melting snow and ice, and groundwater flows.

Answer 39

surface water

Question 40

They represent 0.3% of Earth's total water resource

Answer 40

surface water

Question 41

This resource is harnessed for irrigation, recreation, transport, fishing, drinking, and hydropower.

Answer 41

surface water

Question 42

It has clearly-defined passageways called channels where particles and dissolved substances are transported

Answer 42

stream

Question 43

a stream with a considerable volume and a well-defined channel.

Answer 43

river

Question 44

are interconnected and form a tree-shaped network of small streams, making up the branches and joined to a large main stream or river, which comprise the trunk.

Answer 44

Streams

Question 45

Its upper surface is exposed to the atmosphere-and is essentially flat.

Answer 45

lakes

Question 46

forms in places where water collects in a low area (depression) and behind natural or humanmade dams.

Answer 46

lakes

Question 47

store 67% of the total surface and atmospheric water.

Answer 47

lakes

Question 48

It provides freshwater for irrigation, industrial, municipal, residential, and recreational purposes.

Answer 48

lakes

Question 49

could also be used as transportation routes.

Answer 49

lakes

Question 50

are biologically diverse environments filled with species that rely on both the land and water for survival.

Answer 50

wetlands

Question 51

It is also a fragile ecosystem that is sensitive to the amount and quality of water.

Answer 51

wetlands

Question 52

is a natural event in which an area that is usually dry is submerged under water.

Answer 52

flood

Question 53

usually occurs when the rate of precipitation is higher than the rate in which it could be absorbed by the ground of carried by streams.

Answer 53

flood

Question 54

can also occur even during dry periods when natural or humanmade reservoirs collapse.

Answer 54

flood

Question 55

may occur suddenly and recede quickly, while others lasts for few days to several weeks.

Answer 55

flood

Question 56

occurs at irregular intervals and varies in size, duration, and extent of affected area.

Answer 56

flood

Question 57

freshwater found in the rock and soil layers beneath the surface.

Answer 57

groundwater

Question 58

the largest reservoir of liquid freshwater on Earth.

Answer 58

groundwater

Question 59

It constitutes about 30.1% of the total freshwater on the planet.

Answer 59

groundwater