Chapter 14 and 15 Flashcards

(63 cards)

1
Q

In California , between 1984 and 1992, nearly 84,000 hectares (about 210,000 acres) of _______________ , _______________, and _______________ had been converted into suburbs and cities.

A

farmland
rangeland
woodland

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2
Q

We use land for many purposes, including _______________, _______________, _______________, and building _______________ and _______________.

A
farming
mining
recreation
building cities
highways
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3
Q

_______________ is what you find on a patch of land, and it often depends on how the land is used.

A

land cover

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4
Q

Land that is covered mainly with buildings and roads is called _______________ land.

A

urban

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5
Q

The U.S. Census Bureau defines an urban area as an area that contains _______________ or more people and usually has a governing body, such as a city council.

A

2,500

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6
Q

Land that contains relatively few people and large areas of open space is a _______________ area.

A

rural

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7
Q

Until about 1850, most people lived in _______________ areas.

A

rural

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8
Q

The _______________ _______________ changed this pattern.

A

Industrial Revolution

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9
Q

The movement of people from _______________ areas to _______________ areas happened rapidly in developed countries between about 1880 and 1950.

A

rural

urban

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10
Q

Whether people live in cities or in the countryside, they are dependent on the _______________ produced in rural areas.

A

resources

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11
Q

The resources that are produced by natural and artificial ecosystems are called _______________ services.

A

ecosystem

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12
Q

Each person in a developed country uses the ecosystem services provided by about _____ hectares of land and water.

A

8

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13
Q

In the United States each person uses the ecosystem services from more than _______ hectares, whereas each person in Germany uses about 6 hectares’ worth.

A

12

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14
Q

The movement of people from rural areas to cities is known as _______________.

A

urbanization

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15
Q

Urban areas that have grown slowly are often relatively _______________ places to live.

A

pleasant

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16
Q

_______________ is all of the things that a society builds for public use. Infrastructure includes roads, sewers, railroads, bridges, canals, fire and police stations, schools, libraries, hospitals, water mains, and power lines.

A

infrastructure

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17
Q

Rapid expansion of a city into the countryside around the city is called _______________ _______________.

A

urban sprawl

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18
Q

Many cities were first built where there was little room for _______________. As the cities grew, suburbs were often built on marginal land—land that is poorly suited for building.

A

expansion

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19
Q

Cities both generate and trap more _______________. Roads and buildings absorb more heat than vegetation does. They also retain heat longer. The increased temperature in a city is called a ______________________________.

A

heat

heat island

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20
Q

Heat islands can affect local _______________ patterns. Hot air rises over a city, cooling as it rises, and eventually produces rain clouds.

A

weather

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21
Q

In Atlanta and many other cities, increased _______________ is a side effect of the heat island.

A

rainfall

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22
Q

The heat-island effect may be moderated by planting trees for shade and by installing rooftops that _______________ rather than retain heat.

A

reflect

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23
Q

_______________ _______________ is determining in advance how land will be used—where houses, businesses, and factories will be built, where land will be protected for recreation, and so on.

A

land-use planning

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24
Q

Land-use planners determine the best locations for shopping malls, sewers,
electrical lines, and other _______________.

A

infrastructure

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25
In practice, making land-use plans is complex and often _______________. The federal, state, and local governments require developers to prepare detailed reports assessing the environmental impact of many projects.
controversial
26
Developers, city governments, local businesses, and citizens often _______________ about land-use plans. Projects that affect large or environmentally sensitive areas are often studied carefully and even bitterly debated.
disagree
27
Land-use planners have sophisticated methods and tools available to them today. One important technological tool for land-use planning involves using the _______________ _______________ _______________, or GIS.
geographic information system
28
A geographic information system (GIS) is a computerized system for storing, manipulating, and viewing _______________ data.
geographic
29
GIS software allows a user to enter different types of data about an area, such as the location of sewer lines, roads, and parks, and then create _______________.
maps
30
The power of GIS is that it allows a user to display _______________ of information about an area and to overlay these layers, like overhead transparencies, on top of one another.
layers
31
_______________ is land that grows crops and fruit.
farmland
32
In some places, _______________ development is threatening productive farmland.
urban
33
Land that supports different vegetation types like grasslands, shrublands and deserts and is not used for farming or timber production is called _______________.
rangeland
34
Most damage to rangeland is due to _______________, or allowing more animals to graze in an area that the land can support.
overgrazing
35
People use enormous amounts of _______________.
wood
36
The timber industry classifies land into three categories: _______________ forest, which is forest that has never been cut; _______________ forest, which is forest that is planted and managed; and ______________________________, areas where trees are planted in rows and harvested like any other crop.
virgin forest native forest tree farms
37
_______________ is the process of removing all the trees from an area of land.
clear-cutting
38
_______________ cutting is the process of cutting and removing only middle–aged or mature trees.
selective cutting
39
The clearing of trees from an area without replacement is called _______________.
deforestation
40
_______________ is the process by which trees are replanted to re-establish trees that have been cut down in forest land.
reforestation
41
Worldwide, more than _______________ % of all timber comes from forests that are not managed by an agency that monitors the health of forest ecosystems.
90
42
Today, the US has about _______________ National Parks.
50
43
Wilderness is an area in which the land and its ecosystems it supports are protected from all _______________.
exploitation
44
In attempts to protect wilderness from damage, _______________ have been set on the number of people permitted in some areas at any given time.
limits
45
_______________ is widespread starvation caused by a shortage of food.
famine
46
By 2050, the world’s farmers will need to feed about _______________ people.
9 billion
47
_______________ is a condition that occurs when people do not consume enough Calories or do not eat a sufficient variety of foods to fulfill all the body’s needs.
malnutrition
48
_______________ is the amount of food that can be produced in a given area.
yield
49
_______________ land is land that can be used to grow crops.
arable
50
Topsoil is the _______________ layer of soil.
surface
51
_______________ is the movement of rock and soil by wind and water.
erosion
52
_______________ is the process by which land in arid or semiarid areas becomes more desertlike.
desertification
53
_______________ is partly decomposed organic material.
compost
54
_______________ is the accumulation of salts in soil.
salinization
55
A pest is any organism that occurs where it is not wanted or that occurs in large enough numbers to cause _______________ damage.
economic
56
_______________ are chemicals used to kill insects, weeds, and other crop pests.
pesticides
57
_______________ _______________ _______________ is the use of living organisms to control pests.
biological pest management
58
_______________ _______________ _______________, or IPM, is a modern method of controlling pests on crops.
integrated pest management
59
_______________ crops, or genetically modified crops, utilize the process of modifying the genetic material in a living cell for a specific beneficial purpose.
GM
60
Domesticated animals are bred and managed for _______________ _______________.
human use
61
Catching or removing more organisms than the population can replace is called _______________.
overharvesting
62
_______________ is the raising of aquatic organisms for human use or consumption.
aquaculture
63
Cattle, sheep, and goats are _______________, which are cud chewing animals that have 3 or 4 chambered stomachs.
ruminants