Authors:  Joseph J. Kerski and Ryan Huffman, USGS, jjkerski@usgs.gov, 303-202-4315

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