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Worksheets

4A and 5A EarthScience

Total questions: 150

Worksheet time: 2hrs 20mins

Name
Class
Date
1.

water cycle

a)

the continuous movement of water between the atmosphere, the land, the oceans, and living things

b)

the change of state from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures

c)

the process by which plants release water vapor into the air through stomata; also the release of water vapor into the air by other organisms

d)

the change of state from a solid directly to a gas

2.

evaporation

a)

the process by which plants release water vapor into the air through stomata; also the release of water vapor into the air by other organisms

b)

the change of state from a gas to a liquid

c)

at constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of evaporation

d)

the change of state from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures

3.

transpiration

a)

a cloud that forms near the ground and results in a reduction in visibility

b)

a collection of small water droplets or ice crystals suspended in the air, which forms when the air is cooled and condensation occurs

c)

the process by which plants release water vapor into the air through stomata; also the release of water vapor into the air by other organisms

d)

any form of water that falls to Earth's surface from the clouds

4.

sublimation

a)

the continuous movement of water between the atmosphere, the land, the oceans, and living things

b)

the change of state from a solid directly to a gas

c)

any form of water that falls to Earth's surface from the clouds

d)

at constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of evaporation

5.

condensation

a)

the change of state from a gas to a liquid

b)

any form of water that falls to Earth's surface from the clouds

c)

at constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of evaporation

d)

the change of state from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures

6.

precipitation

a)

any form of water that falls to Earth's surface from the clouds

b)

the change of state from a gas to a liquid

c)

the process by which plants release water vapor into the air through stomata; also the release of water vapor into the air by other organisms

d)

the change of state from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures

7.

cloud

a)

the change of state from a gas to a liquid

b)

a collection of small water droplets or ice crystals suspended in the air, which forms when the air is cooled and condensation occurs

c)

at constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of evaporation

d)

any form of water that falls to Earth's surface from the clouds

8.

dew point

a)

at constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of evaporation

b)

the change of state from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures

c)

the process by which plants release water vapor into the air through stomata; also the release of water vapor into the air by other organisms

d)

the change of state from a gas to a liquid

9.

fog

a)

any form of water that falls to Earth's surface from the clouds

b)

cloud that forms near the ground and results in a reduction in visibility

c)

at constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of evaporation

d)

the change of state from a gas to a liquid

10.

surface water

a)

all the bodies of fresh water, salt water, ice, and snow that are found above the ground

b)

the water that is beneath Earth's surface

c)

the upper surface of underground water; the upper boundary of the zone of saturation

d)

the path that a stream follows

11.

water table

a)

the path that a stream follows

b)

a body of rock or sediment that stores groundwater and allows the flow of groundwat

c)

the upper surface of underground water; the upper boundary of the zone of saturation

d)

the boundary between drainage areas that have streams that flow in opposite directions

12.

channel

a)

the path that a stream follows

b)

the water that is beneath Earth's surface

c)

a stream that flows into a lake or into a larger stream

d)

all the bodies of fresh water, salt water, ice, and snow that are found above the ground

13.

tributary

a)

a stream that flows into a lake or into a larger stream

b)

the water that is beneath Earth's surface

c)

the path that a stream follows

d)

the boundary between drainage areas that have streams that flow in opposite directions

14.

tributary

a)

a stream that flows into a lake or into a larger stream

b)

the water that is beneath Earth's surface

c)

the path that a stream follows

d)

the boundary between drainage areas that have streams that flow in opposite directions

15.

watershed

a)

the area of land that is drained by a river system

b)

the boundary between drainage areas that have streams that flow in opposite directions

c)

a body of rock or sediment that stores groundwater and allows the flow of groundwater

d)

the water that is beneath Earth's surface

16.

divide

a)

a stream that flows into a lake or into a larger stream

b)

the boundary between drainage areas that have streams that flow in opposite directions

c)

the path that a stream follows

d)

the upper surface of underground water; the upper boundary of the zone of saturation

17.

aquifer

a)

a stream that flows into a lake or into a larger stream

b)

the upper surface of underground water; the upper boundary of the zone of saturation

c)

all the bodies of fresh water, salt water, ice, and snow that are found above the ground

d)

a body of rock or sediment that stores groundwater and allows the flow of groundwater

18.

Which location would allow the least amount of water to be absorbed into the ground?

a)

a grassy terrain

b)

a sandy beach

c)

a forest

d)

a mountain

19.

The Ohio and Missouri Rivers are both __________ of the Mississippi River.

a)

tributaries

b)

watersheds

c)

divides

d)

water systems

20.

The land around these rivers is known as the _____________.

a)

tributary

b)

divide

c)

water system

d)

watershed

21.

In what area would you most likely find a divide?

a)

a valley

b)

a plain

c)

a mountain

d)

a hill

22.

Which order correctly completes the water cycle shown in the image?

a)

precipitation, evaporation, absorption

b)

evaporation, absorption, precipitation

c)

evaporation, precipitation, absorption

d)

precipitation, absorption, evaporation

23.

The Grand Canyon is an example of _____________.

a)

rejuvenation

b)

deposition of sediment

c)

headward erosion

d)

stream capture

24.

Most lakes in North America were formed in what way?

a)

cut-off meanders

b)

glaciers gouging out depressions in the earth

c)

stream flows blocked by sediments

d)

naturally occurring depressions n Earth's surface

25.

What is the power behind the water cycle?

a)

gravity

b)

the Sun

c)

evaporation

d)

condensation

26.

The three ways in which a stream carries its load are in solution, suspension, and ___________.

a)

stream velocity

b)

stream channel

c)

bed load

d)

channel capacity

27.

Which of the following statements is true about the development of a stream?

a)

a stream's slope increases as it approaches base level

b)

water along the sides and bottom of the channel flows more rapidly

c)

deposition is greater in the outside curve of a meander

d)

the velocity of water is greater along the outside of a meander curve

28.

The carrying capacity of a stream is its ___________.

a)

ability to transport sediment

b)

rate of runoff entering the channel

c)

volume of flow

d)

stream bank height

29.

V-shaped channels like the Grand Canyon are formed by __________.

a)

a sudden decrease in stream gradient

b)

stream downcutting

c)

streams overflowing their banks

d)

streams capturing another stream

30.

A blocked-off meander eventually becomes __________.

a)

part of the stream again

b)

rejuvenated

c)

an oxbow lake

d)

an alluvial fan

31.
Which is normally larger?
a)
Lake
b)
Pond
32.
Which is normally warmer?
a)
Lake
b)
Pond
33.
Ponds and lakes are used for many things.
a)
True
b)
False
34.
People use ponds and lakes for:
a)
Fishing
b)
Swimming
c)
Boating
d)
All of the above
35.
Lakes have fresh water
a)
True
b)
False
36.
A basin is: 
a)
An animal that looks like a buffalo
b)
The low ground that holds a lake
c)
a bowl
d)
a car
37.
All lakes were made by large sheets of ice that melted.
a)
True
b)
False
38.
Lakes can be man made (made by people)
a)
True
b)
False
39.
More objects ________________ in salt water
a)
float
b)
sink
40.
Lakes and ponds are always surrounded by land.
a)
True
b)
False
41.

Lakes are permanent features on the landscape.

a)

true

b)

false

42.

The Great Lakes were formed by ________.

a)

glaciers

b)

sediment deposits

c)

erosion

d)

earthquakes

43.

We get fresh water from all of the following EXCEPT _____.

a)

oceans

b)

underground

c)

lakes

d)

rivers

44.

Rivers, streams, and other sources of run off carry salt from the land as they flow along the landscape.

a)

true

b)

false

45.

What is an underground area of sand, soil, and rock that is saturated with water called?

a)

an aquifer

b)

run off

c)

an inlet

d)

sediment

46.

What kind of lake forms when a volcano erupts and collapses in upon itself, creating depression that fills with water?

a)

great lake

b)

volcano lake

c)

crater lake

d)

glacier lake

47.

What is the term used for a place where water flows out of the ground?

a)

a river

b)

a lake

c)

a marsh

d)

a spring

48.

Of all the water on Earth, saltwater makes up _______.

a)

about 97%

b)

about 99%

c)

less than 1%

d)

about 3%

49.

In the United States, all the water that falls west of the continental divide in the Rocky Mountains eventually flows into the ____________.

a)

Gulf of Mexico

b)

Atlantic Ocean

c)

Pacific Ocean

d)

Gulf of California

50.

Wetlands provide all of the following benefits EXCEPT __________.

a)

a habitat for birds, animals, and endangered plant and animal species

b)

protection against the wind and waves of storms coming in from the ocean

c)

the trapping of

d)

Gulf of California

51.

What is the name for the process whereby rain and melted snow seep into the ground?

a)

percolation

b)

capillarity

c)

currents

d)

reservoir

52.

Through the use of a turbine, moving water can create ________.

a)

clouds

b)

sediment

c)

reservoirs

d)

electricity

53.

What is the term for a lake that is used to give water to a city or town?

a)

clouds

b)

sediment

c)

reservoir

d)

electricity

54.

Approximately what fraction of the Earth is covered with water?

a)

1/4

b)

3/4

c)

3/5

d)

1/2

55.

Most of the world's water is located in Earth's ____________.

a)

glaciers

b)

oceans

c)

rivers

d)

lakes

56.

Places where fresh water from rivers mixes with saltwater from oceans are called __________.

a)

glaciers

b)

reservoirs

c)

estuaries

d)

wetlands

57.

There is more freshwater located in glaciers than in all the lakes of the world.

a)

true

b)

false

58.

The process that formed the Colorado River is called _________.

a)

deposition

b)

sedimentation

c)

erosion

d)

saturation

59.

The process that causes liquid water on the Earth's surface to change into water vapor in the air is called ________

a)

condensation

b)

sedimentation

c)

evaporation

d)

saturation

60.

Water on land that seeps into the ground is called ____________.

a)

run off

b)

infiltration

c)

evaporation

d)

saturation

61.

Water in the ground that moves downward through spaces in the soil are called ____________.

a)

percolation

b)

infiltration

c)

evaporation

d)

saturation

62.
What is a simple definition of a wetland?
a)
low lying lands with spongy soil that are wet all the  time every year
b)
low lying lands with spongy soil that are wet for a certain time every year
c)
high lands with spongy soil that are wet for a certain time every year
d)
low lying lands with moist soil that are wet all the  time every year
63.
Which type of wetland is best described as, "The plants growing here are grasses, reeds, sedges, and some shrubs."
a)
bogs
b)
fens
c)
swamps
d)
marsh
64.
Which type of wetland would be best described as "usually characterized by the growth of woody plants such as cypress and tupelo trees. "​ 
a)
bogs
b)
fens
c)
swamp
d)
marsh
65.
These are the three main jobs of wetlands.
a)
provide habitats, store flood waters, purify water
b)
provide habitats, store plant life, purify water
c)
purify water, store wildlife, provide habitats
d)
purify the land, store flood waters, provide habitats
66.
Wetlands store flood waters. How is this beneficial? Choose the best answer.
a)
Its not really beneficial because this may flood peoples homes.
b)
It releases the water is increments which will really increase the wildlife in that area.
c)
It releases the water is increments which slows the water down thus slowing erosion.
d)
Its really not beneficial because this will flood the habitats of the wildlife living there.
67.
Which description below best describes how wetlands purify water?
a)
Wetlands slow down the water flow when the water encounters the vegetation. This allows the sediments and pollutants to drop out of the water before the water moves on.
b)
Wetlands don't really purify the water. They just slow it down and the heat from the Sun makes it hot enough to purify the water before it moves on.
c)
Wetlands slow down the water flow so that sediments and pollutants can drop out of the water before it moves on.
d)
Wetlands can't really purify the water because they release the water in large increments which doesn't allow enough time for it to be cleaned.
68.
Which statement below best compares and contrast natural levees and man-made levees in relation to their effect on wetlands?
a)
The man-made levees hurt the wetlands by not allowing the river to ever flood or change course to replenish the wetlands with sediments. The natural levees do allow it to replenish the wetlands.
b)
Both type of levees can hold back flood waters. But, the man-made levees cost a lot to build and maintain where the natural levees build and maintain themselves.
c)
They both help hold back flood waters. However, man-made levees will allow the river to replenish the wetlands and the natural levees do not.
d)
Both type of levees can hold back flood waters. But, the man-made levees hurt the wetlands by not allowing the river to ever flood or change course to replenish the wetlands with sediments. The natural levees do allow it to replenish the wetlands.
69.
These are all examples of natural causes of wetland loss.
a)
storms, subsidence, tectonic activity, and sea level rise
b)
channelization, invasive species, and man-made levees
c)
storms, channelization, tectonic activity, and invasive species
d)
invasive species, natural levees, storms, and sea level rise
70.
These natural causes of wetland loss is complicated by humans.
a)
sea-level rise and tectonic activity
b)
subsidence and tectonic activity
c)
storms and natural levees
d)
sea-level rise and subsidence
71.
The name of the fault where land in Louisiana begins a slow landslide.
a)
Tepetate-Livingston
b)
Tepetate-Baton Rouge
c)
Baton Rouge-Denham Springs
d)
Baton Rouge-Livingston
72.
The reason why part of southeast Louisiana is moving away from the rest of the continent.
a)
It's not really moving away from the continent. It's just sinking lower.
b)
It's built on clay soil not hard bedrock.
c)
It is built on hard bedrock and not Mississippi silt.
d)
It is build on Mississippi silt not hard bedrock.
73.
These things can affect sea level rise.
a)
subsidence, man-made levees, and glaciers melting (global warming)
b)
subsidence, tectonic activity, and glaciers melting (global warming)
c)
tectonic activity and subsidence
d)
glaciers melting (global warming) and man-made levees
74.
These are ways humans contribute to wetland loss.
a)
channelization, invasive species, and man-made levees
b)
man-made levels, channelization, and storms
c)
invasive species, natural levees, and drilling for oil & gas
d)
drilling for oil & gas, storms, and channelization
75.

Which of the following IS NOT true about groundwater?

a)

Groundwater is the largest freshwater source on Earth.

b)

Groundwater is freshwater beneath Earth’s surface.

c)

Groundwater is the largest liquid freshwater source for humans.

d)

Groundwater can maintain streamflow during times of drought.

76.

Much of the water that flows in river systems is direct runoff from precipitation.

a)

True

b)

False

77.

Groundwater is thus a form of _________that _______________ streams during periods when rain does not fall.

a)

storage, sustains

b)

precipitation, dehydrates

c)

saltwater, dries up

d)

mineral, lithifies

78.

The zone of soil moisture is considered to be groundwater.

a)

True

b)

False

79.

The top of an aquifer is known as:

a)

the water table.

b)

an artesian well.

c)

the hydraulic gradient.

d)

a geyser.

80.

The two factors that influence the curved route of infiltrated water flow underground are:

a)

gravity and hydraulic pressure.

b)

gravity and electromagnetism.

c)

the Coriolis Effect and the prevailing winds.

d)

permeability and non-permeability.

81.

Which of the following are wells used for? CHOOSE ALL THAT APPLY!

a)

Wells are used to determine the height of the water table.

b)

Wells are used to obtain water for crop irrigation.

c)

Wells are used to obtain water for human consumption.

d)

Wells are used to create barriers between aquifers, called aquatards.

82.

What does the quantity of groundwater that can be stored depend upon?

a)

It depends upon the porosity of the underground rock.

b)

It depends upon the pH of the groundwater.

c)

It depends upon the underground depth of the storage system.

d)

It depends upon the temperature of the underground rock.

83.

A place where the water table intersects the ground surface and where a natural flow of groundwater results is called:

a)

a spring.

b)

a geyser.

c)

an aquatard.

d)

a fissure.

84.

What is the source of heat for hot springs?

a)

It is provided by the cooling of igneous rock.

b)

It is provided by the transformation of metamorphic rock to sedimentary rock.

c)

It is provided by the warming process of soil moisture.

d)

It is provided by plate subduction at convergent boundaries.

85.

What is the most common method for removing groundwater?

a)

a well bored into the zone of saturation

b)

accessing the water table by use of low-grade explosives

c)

building a water tower

d)

damming up a river

86.

Which of the following depicts an artesian well?

a)
b)
c)
d)
87.

Geologically, groundwater is important as an agent of:

a)

erosion

b)

deposition

c)

lithification

d)

subduction

88.

Which of these images depict a Karst landscape? CHOOSE ALL THAT APPLY!

a)
b)
c)
d)
89.

Identify which of the following are required to make a major cavern system. CHOOSE ALL THAT ARE NECESSARY.

a)

Groundwater is often mildly acidic as it contains a weak solution of carbonic acid.

b)

The acidic nature of groundwater will dissolve the calcite in limestone.

c)

Caverns are formed by dissolving rock beneath the Earth’s surface.

d)

Plate subduction can create caverns as one plate dives under another.

90.

Which of the following IS NOT a dripstone feature?

a)

sinkholes in Karst topography

b)

stalactites hanging from the ceiling of caverns

c)

stalagmites growing upward from the floor of caverns

91.

Areas that lack good surface drainage are usually examples of:

a)

Karst topography.

b)

divergent plate boundaries

c)

volcanic zones.

d)

flood plains.

92.
How does freezing water cause the weathering of rocks?  The freezing water—
a)
keeps the rocks in place
b)
makes the rocks last longer
c)
expands cracks and breaks rocks
d)
causes rocks to fall in landslides
93.
Which of the following is an example of mechanical weathering?
a)
Acidic groundwater dissolving limestone
b)
frost wedging
c)
Paper being burned
94.
A marble statue is left exposed to the weather.  Within a few years, the details on the statue have begun to weather away.  This weathering probably is caused by...
a)
oxygen in the air
b)
carbonic acid in rainwater
c)
lichens
d)
abrasion
95.
Which agents  break down earth materials?
a)
wind only
b)
earthquakes and gravity
c)
ice and 007
d)
wind, water, and ice
96.
Which type of climate will have faster chemical weathering?
a)
Hot and Wet
b)
Cold and Dry
c)
Hot and Cold
d)
Cold and Wet
97.

What is weathering?

a)

The temperature of the air.

b)

The act of sharing the weather forecast.

c)

The changing of the Earth's surface through chemical or physical processes.

98.
Smooth, shiny rocks that have tumbled along the river bottom have been rounded and polished by
a)
water abrasion 
b)
wind abrasion
c)
chemical weathering
d)
ice wedging
99.
U shaped valleys are formed by
a)
rivers
b)
glaciers
c)
wind
d)
human activity
100.
The four agents of erosion are water, wind, gravity, and _____. 
a)
groundwater
b)
abrasion
c)
ice
d)
acid rain
101.
A _______ is the place where land and a body of water meet. 
a)
Shoreline
b)
Beach
c)
River
d)
Stream
102.
Continental glaciers only exist in what two locations? 
a)
Greenland, Antarctica
b)
Iceland, Greenland
c)
Greenland, USA (Alaska) 
d)
Iceland, Antarctica 
103.
What are 3 places  that water constantly moves through?
a)
the atmosphere, the solid Earth, and the biosphere
b)
the air, the water, and the earth
c)
stuff
d)
things
104.
True or False: All water is from surface runoff
a)
True
b)
False
105.
True or False: Gaining stream loses water from groundwater
a)
False
b)
True
106.
The ability of a stream to erode and transport materials depends largely on its ________.
a)
velocity
b)
volume
c)
gradient
d)
length
107.
Which is a factor that decreases downstream?
a)
volume
b)
length
c)
gradient
d)
velocity
108.
During droughts, lack of rain can lead to wells drying up. This is because the drought has lowered the ____.
a)
water trough
b)
zone of aeration
c)
water table
d)
zone of porosity
109.
Ocean -> Evaporation -> Condensation
Which of these would come next in the water cycle?
a)
Aeration
b)
Deposition
c)
Sedimentation
d)
Precipitation
110.
Sinkholes are associated with what kind of bedrock?
a)
Granite
b)
Limestone
c)
Gneiss
d)
Basalt
111.
In karst regions, caves are carved by the flow of water through limestone bedrock. How do the stalagmites and stalactites in the caves develop?
a)
They are granite intrusions that remain behind after water dissolves the surrounding limestone
b)
They are carbonate deposits formed by dripping water in air-filled cavities
c)
They are carvings made in limestone by the swirling water as it hollows out the cavern
d)
They are crystals that grow as water hollows out the cavern
112.
Which best represents the most common arrangement of zones in a water table
a)
surface, aerated zone, bedrock, saturated zone
b)
surface, bedrock, aerated zone, saturated zone
c)
surface, aerated zone, saturated zone, bedrock
d)
surface, bedrock, saturated zone, aerated zone
113.
Which of these substances plays the most important part in chemical weathering?
a)
Wind
b)
Water
c)
Ice
d)
Frost
114.
Deposition by moving water in a river is most likely to occur as the
a)
water slows down
b)
water speeds up
c)
water becomes warmer
d)
riverbed becomes steeper
115.
The removal of salt from salt water to make fresh water.
a)
ground water
b)
desalintion
c)
wawtershed
d)
irrigation
116.
Water that collects in spaces and cracks in rocks and soil underground.
a)
well
b)
aquifer
c)
groundwater
d)
irrigation
117.
Rainwater that flows over land without sinking into the soil.
a)
runoff
b)
spring
c)
groundwater
d)
aqueduct
118.
A system of channels, pipes, or tunnels that carry water a long distance.
a)
irrigation
b)
reservoir
c)
aqueduct
d)
water table
119.
An underground layer of rock or soil through which water easily moves.
a)
runoff
b)
water reclamation
c)
aqueduct
d)
aqueifer
120.
A natural or artificial pond or lake used to collect and store fresh water.
a)
conservation
b)
groundwater
c)
spring
d)
reservior
121.
A natural flow of water from underground that forms where the water table meets the land's surface.
a)
well
b)
desalination
c)
spring
d)
groundwater
122.
The process of suppling fresh water to farm fields for growing crops.
a)
aqueduct
b)
irrigation
c)
spring
d)
runoff
123.
A hole dug or drilled into the ground to provide a supply of water.
a)
watershed
b)
desalination
c)
groundwater
d)
well
124.
The careful use of a natural resource, such as water.
a)
aquifer
b)
conservation
c)
water reclamation
d)
well
125.
The recycling of waste water so it canbe used again.
a)
water table
b)
desalination
c)
water reclamation
d)
conservation
126.
What is the type of water that moves underground?
a)
surface water
b)
water table
c)
groundwater
d)
watershed
127.

What are clouds made from?

a)

water vapors

b)

water droplets or ice crystals

c)

smoke

d)

large snowflakes

128.

What happens when water in an open container absorbs heat?

a)

The water changes to a solid.

b)

The water changes to a gas.

c)

The water stays the same.

d)

The water becomes a new substance.

129.

Which term includes rain, hail, snow and sleet?

a)

condensation

b)

evaporation

c)

subimation

d)

precipitation

130.

Which type of water comes from wells?

a)

surface water

b)

groundwater

c)

ocean water

d)

glacier water

131.

Which terms means using something again for a new purpose?

a)

conserving

b)

sharing

c)

distributing

d)

recycling

132.

A system of pipelines that carries water from a river or lake to the area where it is needed is called a______?

a)

water cycle

b)

water table

c)

watershed

d)

aqueduct

133.

Which of the following is a way to recycle water?

a)

take shorter showers

b)

use wastewater to water crops

c)

fix leaky faucets

d)

use less water for drinking

134.

What is an aquifer?

a)

a layer of rock that holds groundwater

b)

a type of cloud

c)

a way to conserve water

d)

a way to purify water

135.
Water flows through permeable materials ____________________ than impermeable materials.
a)
slower
b)
faster
136.
If porosity is low then permeability is ______________.
a)
low
b)
high
137.
The ___________________ the grain size, the faster the water will move through the soil.
a)
more mixed
b)
smaller
c)
larger
138.
Well sorted soil...
a)
has low porosity
b)
has low pore space
c)
has high porosity
d)
means water will move through slowly
139.
Which container has the lowest porosity?
a)
A
b)
B
c)
C
d)
A and B
140.
Impermeable materials...
a)
have an abundance of pores.
b)
let water in.
c)
have little to no pores.
141.
Water flows through permeable materials ____________________ than impermeable materials.
a)
slower
b)
faster
142.
The measure of how easily water can flow through an aquifer. 
a)
porosity
b)
permeability
c)
gradient
d)
divide
143.
the measure of the storage space available in an aquifer.
a)
aquifer
b)
permeability
c)
porosity
d)
divide
144.
Scientists believe that comet strikes may have been one source of the water  in Earth's oceans
a)
True
b)
False
145.

Oceans cover about ______ of the surface of the earth.

a)

60%

b)

70%

c)

80%

d)

90%

146.

There are _____ oceans in the world

a)

4

b)

6

c)

5

d)

9

147.

The following are the oceans according to size

a)

Pacific, Atlantic, Indian, Arctic, Antarctic

b)

Pacific, Indian, Atlantic, Arctic, Antarctic

c)

Atlantic, Pacific, Indian, Antarctic, Arctic

d)

Pacific, Atlantic, Indian, Antarctic, Arctic

148.

Smaller bodies of salt water are called

a)

seas

b)

lakes

c)

oceans

d)

rivers

149.

The ______________ covers a third of the earth's surface.

a)

Indian Ocean

b)

Pacific Ocean

c)

Atlantic Ocean

d)

Arctic Ocean

150.

The deepest parts of the ocean are called

a)

trenches

b)

abyss

c)

deep sea plain

d)

guyot