instruction:
You are given a passage. Using the information present in the passage, you need to classify it into one of the 10 topics: 0 - 'Society & Culture', 1 - 'Science & Mathematics', 2 - 'Health', 3 - 'Education & Reference', 4 - 'Computers & Internet', 5 - 'Sports', 6 - 'Business & Finance', 7 - 'Entertainment & Music', 8 - 'Family & Relationships', 9 - 'Politics & Government'.
question:
You might not have intended it, but your question is a lot more complex than you might have thought.  It turns out that the temperature of the sun is a function of how deep into the sun you are, with the surface temperature being about 6000 Kelvins.  To make things even more complicated, the Corona of the sun (which extends in all directions around the sun beyond the surface) is actually 1,000,000 Kelvins.\n\nThis fact is well established, but further research is required to understand *why* there is such a huge difference in temperature between the two.\n\nNow for the second part of your question:\n\nThe light intensity of the sun drops off as the inverse square of your distance from the sun.  The "heat" is another thing entirely, because heat is defined as the average kinetic energy of particles, and photons don't count strictly in that definition.\n\nThere are particles that come from the sun in the form of solar wind, and around the region of the Earth, they have a "temperature" around 1000k.
answer:
1


question:
It isn't as foggy as you might think. Spring and Fall are quite temperate, and San Francisco is renowned for it's "Indian Summer" in September. However, Mark Twain had a point when he said "The coldest Winter I ever spent was Summer in San Francisco."\nThis is because the warm air from inland (where it gets quite hot in the Summer) clashes with the cold air from the surrounding Pacific Ocean and the SF Bay. When that happens, fog forms. Further explanation from http://kids.earth.nasa.gov: "At night, the ground surface cools by radiating heat to space. Air near the ground cools to the dew point temperature, causing water in the air to condense."\nSure it's cold, but fog can be quite beautiful and atmospheric. Just look at the pictures on http://www.goldengatephoto.com/sanfran/thefogrollsin.html  Lovely!
answer:
1


question:
no
answer:

9


