Answer 1:
The temperature of the earth's crust (surface
of the earth) depends on where we're
measuring. In Santa Barbara, the earth's crust
is warm. But up in Canada, the earth's crust is
covered in snow and very cold. Usually the closer
to the equater, the warmer it gets, and the closer
to the poles the colder it gets.
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Answer 2:
This is different depending on where you are and
what season you are in. In the tropics it's
usually about 30 °C, at the north pole about 0 °C,
and at the south pole about -50 °C in summer and
-100 °C in winter. This is because the
temperature at the Earth's surface is determined
by the energy from the sun rather than
radioactivity in the Earth's core.
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