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Let us test the knowledge of the geocacher about the sun. In the geochecker, write "word" representing the letter designations of the correct answers to all four questions shown below. For example: if all first answers are correct then "word" will be: aaaa, if all last answers are correct then "word" will be: dddd.
1. Light (photons) travels from Sun to the Earth 8 minutes. And how long does it take for photons to travel from the center of the Sun to its surface?
a) roughly 0.3 milisecond
b) circa 1500 years
c) 15.000 - 150.000 years
d) 200.000 - 1.000.000 years
2. How is the visible surface of the Sun called?
a) Chromosphere
b) Solar corona
c) Sun's atmosphere
d) Photosphere
3. What has bigger angular size on our sky: the Sun or the Moon?
a) Sun
b) Moon
c) They're equal with precision to 0.1%
d) Sometimes one, sometimes other
4. Which of the listed telescopes is used to detecting new extrasolar planets?
a) Kepler Space Telescope
b) Chandra X-ray Observatory
c) Hubble Space Telescope
d) Atacama Large Milimeter/Submilimeter Array (ALMA)
The container contains a pencil
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