The rainbow is violet on the inside of its arc. What color is it on the outside?

blue

green

yellow

red

Visible light spans from red to violet. It is easy to remember, since wavelengths just outside the visible range are called infrared and ultraviolet.

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Answers by country

India

11%

75%

388

Ghana

72%

Canada

17%

67%

the United States

16%

10%

64%

560

Unknown

19%

64%

Malaysia

13%

63%

Australia

12%

61%

the United Kingdom

21%

10%

59%

152

Germany

21%

10%

53%

Pakistan

10%

28%

53%

Poland

18%

10%

22%

47%

16257

the Philippines

35%

47%

the Netherlands

21%

17%

13%

47%

Austria

18%

45%

South Africa

33%

16%

44%

Greece

25%

12%

18%

43%

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Why is White Sands Desert in New Mexico so purely white?

it is gypsum

it is very fine grained sand

it iswhite quartz

it is an optical illusion

Who is more likely to be colorblind?

men

women

sailors

everyone with the same probability

In which country are the following surnames very common: "unbeatable", "rock", "iron", "falcon", "steel" and "thunderbolt"?