Definitions Flashcards

(76 cards)

1
Q

Thematic Maps

A

gives specific information about a place, easy to understand

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2
Q

Topographic Maps

A

uses symbols to show a variety of features

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3
Q

Mercator Maps

A

for navigation charts (gives true compass bearings between points), greatly distorts land masses

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4
Q

Winkel Tripel

A

standard world reference map, compromises between all types of distortion

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5
Q

General Purpose Maps

A

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6
Q

Scale

A

shows the relationship between the distance a map and the actual distance on the surface

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7
Q

Large Scale=

A

large detail

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8
Q

Small Scale=

A

small detail

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9
Q

Drainage Basin

A

depressed area into which rivers flow, 6 around NA

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10
Q

Continental Divide

A

raised or elevated land separating where water drains (mountain ranges)

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11
Q

River source

A

a place where a river begins (at continental divides, cleanest water here).

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12
Q

River mouth

A

place where river ends or enters a larger body of water

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13
Q

Tributary

A

smaller river that contributes water into a larger river, e.g.) Assiniboine into Red River

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14
Q

Delta

A

triangular piece of land near a river thats rich in sediment e.g.) nile delta

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15
Q

Watershed

A

land which drains into drainage basin

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16
Q

Atlas

A

book of maps

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17
Q

Gazetteer

A

an alphabetical list of place found at back of Atlas

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18
Q

GPS

A

orbiting satellites provide navigation data around the clock. Satellites send radio signals to Earth and a GPS uses that to calculate its latitude and longitude

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19
Q

Cartography

A

study and practice of making maps combining science, aesthetics, and technique

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20
Q

Map projection

A

when features of a globe are transferred onto a flat surface

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21
Q

Alphanumeric Grid

A

uses letters and numbers to identify squares on a grid pattern. often used on road maps

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22
Q

Compass Points

A

the directions on a compass rose

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23
Q

Compass Rose

A

shows directions and bearings

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24
Q

Compass Bearings

A

the degrees on a compass rose (measured clockwise from north)

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25
Prime Meridian
line of longitude at 0 degrees
26
Equator
line of latitude at 0 degrees
27
International Date Line
runs between the north and south poles, generally follows the 180 degree line of latitude through the Pacific Ocean
28
East of Greenwich
add one hour
29
West of Greenwich
subtract one hour for every time zone passed
30
Time Zones
- 24 hours in a day=24 time zones - each time zone is 15 degrees (1 hour) apart - China has only 1 time zone when it should have 5 - Earth rotates 360 degrees in 24 hours, must turn 15 degrees of longitude in 1 hour
31
Latitude and Longitude
lines that form an invisible grid around the Earth
32
Latitude
-parallel, circle the globe from east to west, all lines are about 69 miles apart (60 min within each degree), measures places north and south of the equator
33
Longitude
not parallel, intersect north and south poles, measure from east to west of Prime Meridian
34
Standard Time
every place within a time zone that has the same time
35
Legend
explains meaning of colours and symbols on a map
36
Famine
temporary situation in which an area is unable to feed its people
37
Starvation
extreme form of hunger in which the body beings to consume its own proteins and resultantly loses mass
38
Malnutrition
condition in which health is harmed by an unbalanced diet
39
Undernutrition
form of malnutrition caused by a dietary lack of vital nutrients in the quantity needed for the body to develop and function properly
40
Productivity
the capacity to generate goods or services that have an economic value
41
Selective Breeding
keeping seeds or stock that is better and getting rid of which is not beneficial for food production
42
GMO
genetically modified organism, organisms whose genetic structure has been changed to give them desirable characteristics
43
High Yield
the development of crops, such as corn, specifically bred to replace lower-yielding native crops
44
Green Revolution
development of the second half of the 20th century of high-yielding crops of wheat and rice that lead to increased harvest, especially in developing countries
45
Subsistence
growing food only for one's immediate family
46
Cash crop
growing food for the business of selling it
47
Intensive
small amounts of land and lots of labour
48
Extensive
large amounts of land with little labour
49
Transgenic
organisms who's genetic material has been altered
50
Renewable Resource
farmland which is taken care of and continually produces crops annually
51
Agribusiness
co-ops, private, or public companies growing food for profit
52
Vertical Integration
combination of one company of 2 or more stages of production normally operated by separate companies
53
Growing Season
number of frost free days when crops can grow
54
Mechanization
process where machines take over the work of animals and humans
55
Sustainable
farming that doesn't harm the environment
56
Contour Plowing
plow across field instead of up and down
57
No-till cropping
method in which stubble from previous year's crops form a cover holding soil in place, protecting it from wind erosion
58
Fertilizers
chemicals to help promote the growth of plants
59
Herbicides
chemical designed to kill undesirable plants
60
Pesticides
chemicals to kill unwanted pests in crops
61
Organic Material
organisms grown without the use of chemicals
62
Heavy Metals
metals that can be toxic to lifeforms because they stay in the body for a long time
63
Genes
genetic info. that modifies the specific characteristics of an organism
64
Income
how much money you earn from your job
65
Thresher
machine that separates grain from plants by beating
66
Urbanization
more people leave countryside to live in cities
67
Whole apple
planet earth
68
3/4
all water on earth
69
1/4
all land on earth
70
1/8
uninhabitable and unarable land
71
other 1/8
habitable land
72
3/32
habitable but unarable land
73
1/32
arable land
74
1/32 peel
topsoil
75
Irrigation
science of taking water and moving it for farms
76
Aquifer
underground source of water (like a sponge-sand and gravel)