Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ENV 121 > Exam 3 > Flashcards

Exam 3 Flashcards

1
Q

Which layer of a deep lake has the most light and oxygen?

A

epilimnion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Mangrove trees are found along ________ shorelines.

A

tropical saltwater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Ecologically, barrier islands are not good places for development.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following is NOT an ecosystem service of wetlands?

A

large amounts of land available for development of farms or neighborhoods

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Sophia is an environmental educator who regularly teaches outdoor classes for schoolchildren along the seashore. She takes them to shallow, rocky areas where even at low tide there is enough water to find species such as sea stars, urchins, crustaceans, and seaweed. Where are Sophia and the schoolchildren?

A

in a tide pool

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Wetlands perform a major ecosystem service of trapping and filtering water as it passes through the wetland area.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which type of wetland is noted for producing peat?

A

bogs and fens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

If an organism is described as ‘benthic,” where does it reside?

A

at the bottom of the ocean or a lake

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The category of wetland that always contains trees is the

A

swamp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The sharp boundary between a lake’s warmer epilimnion and cooler hypolimnion is called the benthos.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Wetlands are biomes that

A

are wet at least some of the year.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the greatest threat to wetland ecosystems?

A

conversion to terrestrial communities through sediment loads or draining for development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which marine stratification listed would have the least primary productivity?

A

abyssal zone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Why are the North Atlantic, North Pacific, and Antarctic waters the most productive?

A

Cold water holds the most dissolved oxygen and can therefore support greater numbers of phytoplankton.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

________ is where fresh water mixes with ocean water.

A

An estuary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Coral bleaching occurs when ________.

A

ocean temperatures are too warm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What marine ecosystem is most similar to a tropical rainforest in terms of diversity?

A

coral reef

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which of the following protects mainland shores from the force of waves?

A

barrier islands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Organisms in this habitat are adapted to very hot temperatures, high pressure, and are supported by a food chain based on metabolizing sulfur compounds rather than oxygen. This description best fits

A

hydrothermal vent communities.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The difference between a wetland and a swamp is that ________.

A

a swamp has trees and a wetland does not

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which of the following are NOT forms of chemical deterioration of soil?

A

waterlogging

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which of these is NOT a benefit found with reduced tillage farming?

A

decreased insects and weeds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Another word for cover crops is

A

green manure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Terracing is more sustainable than conventional farming, but is also more expensive.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

When compared to sand and gravel, small soil particles (clay and silt) have ________ pore space.

A

less

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

About what portion of world freshwater withdrawals is used for agriculture?

A

2/3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

The richest farming soils that form under the grasslands of central North America and under moist deciduous forests are the ________.

A

mollisols and alfisols

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Which of the following CANNOT be found in soil?

A

All of these are found in soil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Which is the BEST cropping method for reducing erosion?

A

rotating corn, wheat and clover

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Which of the following is NOT a component of soil texture?

A

organics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Which of the following is the most important factor influencing soil drainage?

A

soil texture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What’s the term used to describe soil that has clay, silt, and sand?

A

loam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

You walk into a field and see rows of soybean plants. Upon closer inspection, you see the remains of the corn stalks from a previous crop. What techniques are practiced on this farm?

A

no-till and crop rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Which of the following is the most correct definition of soil?

A

a complex mixture of organic matter, minerals, and living organisms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

The benefits of leaving crop residues on a field after harvest include

A

All of these are correct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

To increase carbon inputs AND reduce carbon losses in soil, which of the following management practices could be used?

A

no tillage or conservation tillage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Mycorrhizal symbiosis reveals fungi to be more damaging to plant growth than originally believed.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Mineral particles in the soil are derived from

A

All of these are correct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

The stratified horizontal layers of soils are called soil ________.

A

horizons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Annual row crops such as ________ cause the highest erosion rates because ________.

A

corn and beans; soil is left bare for the majority of the year

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

In terms of mineral resources, recycling is ________ as raw materials become more ________ and ________ are more plentiful.

A

slowly increasing; scarce; wastes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

The country with the largest production of rare earth metals is

A

China

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

The physical breakdown of a rock into smaller pieces is called

A

mechanical weathering

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Which of the following statements is false?

A

Tsunamis are generally caused by volcanic eruptions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Rocks formed from solidified magma are known as ________ rocks.

A

igneous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Earth’s largest mountains are found

A

under the sea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Which step in the rock cycle is responsible for the formation of sedimentary rocks?

A

Soil and rock particles get compressed and glued together as additional soil accumulates above forming sedimentary rocks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

A major environmental implication of the quest for more gold at lower concentrations in the ore compared to higher concentrations is that

A

more material has to be moved to get to the gold.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

The metal(s) that is/are most important in global economies is/are

A

iron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Iron and aluminum are examples of minerals based on their unique crystal structure.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Reclamation of strip-mined land is difficult chiefly because

A

topsoil is mixed up and buried so topsoil must take time to develop again for plants to grow.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Why are distant communities interested in the mining activities of other regions? For example, why was Georgia interested in Tennessee’s emission standards related to the Ducktown smelters?

A

Air and water pollution don’t stay in one place.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

A mineral is composed of

A

inorganic elements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

Heap-leach extraction removes gold from ore by

A

spraying cyanide on a pile of ore gravel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

Mechanical weathering changes both the physical and chemical composition of rocks.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

Crude oil is derived from ________.

A

phytoplankton and algae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

The fundamental characteristic(s) that distinguish(es) a mineral is/are its

A

chemical composition and its crystal structure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

The basic material of rocks is a cohesive group of

A

one or more minerals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

The biggest risk to communities surrounding mountain top removal is ________.

A

infiltrating water flows through the rock debris and picks up toxic metals and chemicals, taking them to drinking water supplies.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

Which of the following is NOT a major type of rock?

A

bituminious

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

In the process of hydraulic fracturing (fracking), water mixed with chemicals is used to break rock to access natural gas. Because of the added chemicals, this water cannot be returned to surface waters. This wastewater is injected deep underground to be stored away from groundwater resources that could be contaminated. This is an example of

A

water consumption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q

Which of the following factors is the MOST important factor in determining whether a country is “water rich” or “water poor”?

A

renewable water supplies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

Groundwater recharge in most areas of the United States is just barely keeping up with the rate of water withdrawal.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

Which of the following is NOT an effect that urbanization has on water?

A

Urbanization increases transpiration.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q

The hydrologic compartment that contains the greatest amount of fresh water is

A

ice and snow.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q

Many experts think that in the future, water conflicts will be a major cause of international conflict. Currently, however, there are no international conflicts over water.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q

Aquifers are porous underground geological formations from which water can be extracted.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q

Worldwide per capita use of water has

A

increased substantially.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q

The place where aquifers are most likely to be contaminated is at

A

recharge zones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q

Which of the following is the largest compartment of fresh water on Earth?

A

ice and snow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q

Rain shadows

A

are areas known for receiving little precipitation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q

The San Joaquin Valley in California has sunk because groundwater is withdrawn faster than it is replaced causing collapse of pore spaces underground. This is called

A

subsidence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q

One of the major reasons for the removal of dams in the United States is

A

to restore fish populations.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q

Water scarcity occurs when

A

the demand for water exceeds the available amount or when poor quality restricts its use.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
75
Q

Which of the following withdraws the highest amount of water yearly?

A

agriculture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
76
Q

Evaporation is greatest at

A

mid-latitudes (20 to 40 degrees).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
77
Q

In general, water use worldwide is dominated by

A

agricultural use.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
78
Q

Natural evaporation processes are mainly driven by

A

solar energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
79
Q

The largest single use of water for industrial purposes is for

A

power production

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
80
Q

Approximately ________ percent of Earth’s water is freshwater.

A

two

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
81
Q

Soil

A

composed of mineral grains, organic matter, organisms, water, and air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
82
Q

Soil erosion

A

when too much nutrients are washed away from runoff

83
Q

Salinization

A

a process in which mineral salts accumulate in the soil, killing plants; occurs when soils in dry climates are irrigated profusely

84
Q

Crust

A

lightweight outermost layer of the earth’s surface that floats on the soft, pliable, underlying layers; similar to the “skin” on a bowl of warm pudding

85
Q

Mantle

A

a hot, pliable layer of rock that surrounds the earth’s core and underlies the cool, outer crust

86
Q

Core

A

the dense, intensely hot mass of molten metal, mostly iron and nickel, thousands of kilometers in diameter at the earth’s center

87
Q

Asthenosphere

A

soft part of earth’s mantle

88
Q

Lithosphere

A

crust and uppermost mantle

89
Q

Subduction

A

the process by which one tectonic plate is pushed down below another as plates crash into each other

90
Q

Collision

A

when two tectonic plates collide

91
Q

Convergence

A

when two tectonic plates slide past each other

92
Q

Tsunami

A

powerful waves triggered by earthquakes and landslides

93
Q

Fossil fuels

A

petroleum, natural gas, and coal created by ecological forces from organic wastes and the dead bodies of formerly living organisms

94
Q

Coal

A

a mineral deriving from leaves and other plant material accumulated in the bed of ancient swamps

95
Q

Mineral

A

a naturally occurring, inorganic, crystalline solid with definite chemical composition and characteristic physical properties

96
Q

Rocks

A

a solid, cohesive aggregate of one or more crystalline minerals

97
Q

Smelting

A

roasting ore to release metals

98
Q

Faults

A

trapping accumulations of oil

99
Q

Epilimnion

A

the most light and oxygen levels of a lake

100
Q

Thermocline

A

a distinctive temperature transition zone that separates an upper layer that is mixed by the epilimnion and the hypolimnion

101
Q

Hypolimnion

A

the colder, deeper layer that isn’t mixed

102
Q

Benthos

A

the very bottom of the lake

103
Q

Littoral zone

A

shorelines

104
Q

Estuary

A

a bay or drowned valley where a river empties into the sea

105
Q

Coral reefs

A

prominent oceanic features composed of hard, limy skeletons produced by coral animals

106
Q

Mangroves

A

trees from a number of genera that live in shallow saltwater

107
Q

Barrier islands

A

low, narrow, sandy islands that form offshore from a coastline, protecting the shore from storms

108
Q

Wetlands

A

ecosystems of several types in which rooted vegetation is surrounded by standing water during part of the year

109
Q

Benthic organism

A

organisms at the bottom of the sea or lake

110
Q

Continental shelf

A

the undersea area

111
Q

Intertidal zone

A

the place between high and low tides

112
Q

Pelagic zone

A

the vertical water column of a water body

113
Q

Abyssal zone

A

the deepest layer

114
Q

Epipelagic zone

A

the layer on top

115
Q

Saturation point

A

moisture condensing into either rain or snow

116
Q

Barrier islands are formed of

A

wind- and wave-deposited sand.

117
Q

________ is the basis of marine food webs.

A

Phytoplankton

118
Q

Unlike terrestrial communities, aquatic communities are rarely determined by the physical characteristics of the environment (other than the water itself).

A

False

119
Q

Which of the following is NOT a region in a lake ecosystem?

A

pelagic zone

120
Q

Estuaries are noted by biologists because they have few, but highly specialized biological niches.

A

False

121
Q

This ecosystem is based on a symbiosis between a small animal and photosynthetic algae. Name the ecosystem described.

A

coral reef

122
Q

Estuaries are characterized as being

A

important nurseries for many fish and other animal species.

123
Q

The thermocline is the layer in a lake at which

A

the warm upper zone meets the cold lower zone

124
Q

One of the drawbacks of leaving crop residues on a field after harvest is increased

A

pest and disease problems.

125
Q

Wind erosion is most likely to cause problems in

A

open, arid regions

126
Q

This component of soil is important for making nutrients available to plants.

A

bacteria, algae, and fungi

127
Q

Salinization is a common agricultural problem in what type of region?

A

arid

128
Q

How much of the earth’s land is currently in crop production?

A

11%

129
Q

Good farming soils have a thick

A

A horizon

130
Q

Which of the following is the BEST way to ensure soil health?

A

strip farming and leaving residues on fields after harvest

131
Q

Which of the following would have nearly zero topsoil?

A

desert

132
Q

Soil organisms usually stay ________ the soil.

A

close to the surface of

133
Q

Contour plowing and strip farming are methods designed to

A

prevent water and soil loss.

134
Q

________in the mantle and core make tectonic plates move.

A

convection currents

135
Q

Coal is derived from ________ compressed and hardened over millennia

A

plant material from swamps

136
Q

The selective removal or alteration of specific components of a rock that leads to its weakening is called

A

chemical weathering

137
Q

The continental crust of the earth is thicker and lighter than the oceanic crust.

A

True

138
Q

Subduction is the process of a tectonic plate

A

being forced below another plate.

139
Q

Which of the following is classified as a non-metal mineral?

A

sand

140
Q

Using recycled materials utilizes about as much energy as required to process virgin ore.

A

False

141
Q

The “ring of fire” is the source of more earthquakes and volcanic activity than any other place on earth.
What causes the ring of fire?

A

the subduction of Pacific plates under continental plates

142
Q

Where do the toxic gases and leachates come from that are the result of mining for gold?

A

sulfur compounds in the ore

143
Q

Metamorphic rocks are produced when rocks are

A

recrystallized by heat and pressure

144
Q

What gas is released in the process of smelting?

A

sulfur dioxide

145
Q

Recycling aluminum beverage cans

A

consumes 1/20 of the energy required to make new aluminum.

146
Q

Which of the following is water consumption?

A

bottling groundwater and shipping it to other states

147
Q

Withdrawal is the total amount of water

A

taken from rivers, lakes, or aquifers

148
Q

Evaporation is

A

liquid water turning to vapor well below boiling temperature.

149
Q

The largest river in the world is the

A

Amazon

150
Q

In the twentieth century, half of the new dams that were built are in

A

China

151
Q

The atmosphere has the greatest ________ of the earth’s hydrologic compartments

A

Turnover rate and smallest water volume

152
Q

Water enters groundwater by

A

infiltration

153
Q

The dip in the water table below wells is called the

A

cone of depression

154
Q

Cause and effects of water stress may include

A

All of the above are potential causes or effects of water stress

155
Q

The place where aquifers are most likely to be contaminated is at

A

recharge zones

156
Q

The activity that uses the greatest share of U.S. household water is

A

flushing the toilet

157
Q

Monsoon

A

A seasonal reversal of wind patterns caused by the different heating and cooling rates of the oceans and continents

158
Q

Albedo

A

A description of a surface’s reflective properties

159
Q

Polar cells

A

polar cells

160
Q

Hadley cells

A

equatorial convection cells

161
Q

Ferrell cells

A

mid-latitude cells

162
Q

Coriolis effect

A

The influence of friction and drag on layers near earth; deflects air currents to the direction of the earth’s rotation

163
Q

Cold front

A

a moving boundary of cooler air displacing warmer air

164
Q

Tornadoes

A

a violent storm characterized by strong whirling winds and updrafts. Tornadoes form when a strong cold front pushes under a warm, moist air mass over the land

165
Q

Hurricanes

A

Large cyclonic oceanic storms with heavy rains and winds exceeding 119 km/hr

166
Q

El Nino

A

A climatic change marked by the shifting of a large warm water pool from the western Pacific Ocean toward the east. Wind direction and precipitation patterns are changed over much of the Pacific and perhaps around the world

167
Q

Warm front

A

a long, wedge-shaped boundary caused when a warmer advancing air mass slides over neighboring cooler air parcels

168
Q

The coral reef is among the most endangered biological communities.

A

True

169
Q

Which of the following is a common characteristic of shoreline communities such as mangroves, estuaries, and salt marshes?

A

They are all nursery habitats for marine animals including commercially important species

170
Q

Coral reefs form in

A

warm, clear tropical seas

171
Q

Freshwater ecosystems

A

include lakes, marshes, bogs, and fens.

172
Q

Chemicals were first used to kill or ward off pests

A

thousands of years ago

173
Q

It is possible to simulate _________ in a flower pot. If a plant is overwatered, the salts in the water can build up in the flower pot. The roots of some plants are very sensitive to build up of salts, which can impact their growth or kill the plant.

A

salinization

174
Q

Soil color and texture are important for recognizing soils good for farming. Which of the following would be a soil richer in organic material and nutrients?

A

deep black soils

175
Q

What type of soil is sticky, elastic, and impermeable?

A

clay

176
Q

To reduce carbon losses in soil, which of the following management practices could be used?

A

no tillage

177
Q

The efficiency of irrigation water use is ________ in most countries. One of the reasons for this is ________.

A

low; evaporative losses from unprotected water channeling

178
Q

Which of the following uses the LEAST amount of energy in industrialized farming practices?

A

drying the crops in the field

179
Q

Which of the following would have nearly zero topsoil?

A

deserts

180
Q

Rill erosion can lead to

A

gully erosion

181
Q

Underground coal mines have a high risk of fires, which can burn for many years.

A

True

182
Q

Which of the following bodies of water is growing due to tectonic movement?

A

Atlantic Ocean

183
Q

Salts such as halite are often produced as ________ deposits.

A

sedimentary

184
Q

A lesson from the Ducktown, Tennessee mining experience is that mineral exploitation can

A

produce great wealth but at great social and environmental cost.

185
Q

The continents are the lightest part of Earth’s crust.

A

True

186
Q

Which of the following saves the most amount of energy when derived from scrap rather than producing new from ore or raw source materials?

A

aluminum

187
Q

Which term means a solid aggregation of minerals?

A

rock

188
Q

What era is marked by the presence of the first humans?

A

cenozoic

189
Q

The most common element in the earth’s crust is

A

oxygen

190
Q

Forces of weathering are most directly responsible for ________ rocks.

A

sedimentary

191
Q

In many places, it is possible to collect your aluminum drink cans and sell them to a scrap metal recycling business. Why will these businesses buy your collected drink cans?

A

They can sell the scrap to companies who manufacture aluminum cans.

192
Q

Of all the world’s fresh water, nearly ________ percent is tied up in glaciers, ice caps, and snowfields.

A

90

193
Q

Subsidence and sinkholes

A

are probably a permanent loss of an aquifer.

194
Q

As population has increased since 1900, all of the following uses have increased. Which of the following water withdrawals cannot be directly reduced by conservation efforts?

A

evaporation from reservoirs

195
Q

The Ogallala Aquifer supplies water to ________ and once held more water than all of the surface water ________

A

The Great Plains states; in the world

196
Q

Principal problems that have resulted from the construction of large dams include the relocation of people.

A

True

197
Q

Wetlands are important for the infiltration of water into aquifers.

A

True

198
Q

Which of the following is NOT a part of the hydrologic cycle?

A

photosynthesis

199
Q

According to the United Nations, by 2025, two-thirds of the world’s population will be living in drought-stressed conditions.

A

True

200
Q

The zone of saturation is the portion of groundwater where

A

all soil or rock pore spaces are filled with water.

201
Q

The regions of the world with the most precipitation annually are

A

the tropical region near the equator.

202
Q

Withdrawal of groundwater often causes subsidence, a situation where

A

porous rocks settle and ground level falls.

203
Q

A country’s renewable water supplies are generally made up of

A

surface runoff and infiltration into accessible aquifers.

ENV 121 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions