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Exploring the Earth Using Remote Sensing - Answer Key

1.  No
2.  Because the images show bands that the eye cannot see—a different part of the electromagnetic spectrum.
3.  Higher
4.  More Terrain
5.  Less Detail
6.  Smaller map scale
7.  Blue-Gray
8.  Red
9.  White – Green – Brown
10.  Desert Southwest
11.  Color is brown-tan around the city; therefore, little natural vegetation.  The city contains red irrigated patches.  No major river in the area.
12.  N and W
13.  Mountains confine the city to the E and S
14.  Las Vegas, NV
15.  Growing Quickly
16.  Center pivot irrigation / cropland
17.  Yes
18.  More land is being cultivated / irrigated
19.  Natural color
20.  Some fields are green
21.  Golf course
22.  College or university
23.  Railroad yard
24.  Stadium
25.  Junkyard / Auto Salvage
26.  River Delta
27.  Spit
28.  Meteor Crater
29.  Glacier
30.  Snow
31.  Oxbow Lake
32.  The river contains more sediment.
33.  Disappearing / Evaporating
34.  Water diverted for irrigation and/or drought.
35.  From the south
36.  Because desert and therefore, little rainfall, exists to the north.  To the south the land is red in the image, indicating more vegetation and water; most water flows to Lake Chad from the south.
37.  Due to seasonal variations in rainfall.
38.  Slash and burn; clearing the land with fire.
39.  Reclaimed / Building Dikes / Draining
40.  Holland / The Netherlands
41.  Red
42.  Vegetated
43.  Pink / Multicolor / Tans
44.  Fire
45.  6 am to Noon
46.  North
47.  Red and Yellow
48.  Red
49.  Southwest, West-southwest, or West
50.  6 am - Noon
51.  East
52.  East and West
53.  East
54.  White, Gray, or Teal. It represents cleared land / De-vegetation / Debris
55.  Central
56.  North
57.  SE
58.  Purple
59.  Deforestation / Development
60.  Fields / Crops / Farming
61.  Wildfires
62.  Red
63.  Smoke
64.  NE
65.  E to W
66.  B
67.  A
68.  C