288K
It is the average temperature. the intermediate value between the highest and the lowest
What do you mean increase, decrease, or stay the same? Do you mean the temperature?
Because, seen from space, it's obvious that most of the Earth's surface is covered by water. If you look at the Pacific ocean from space - it almost covers the whole of the visible surface ! Have a look on Google Earth - you'll see what I mean.
I don't know what you mean by "warm the density of the air" but if you mean heat up the air in general, I guess not if it is directly a few inches below the surface, because the earth's core doesn't warm it, and the sun can't warm it.
9320 Kelvin...not sure what you mean by the stars surface, but its core contains a larger percentage of iron than many other stars. Does this answer your question?
Mean surface temperature (day)107°CMean surface temperature (night)-153°CMaximum surface temperature123°CMinimum surface temperature-233°C
At Vostok Station in the Antarctic, located at the 'pole of inaccessibility' the daily mean is about -55oC. This spot, farthest from the coast of Antarctica, also has the record for the lowest surface temperature. But where you and I live, the mean surface temperature is likely to be a few degrees C. The highest mean is either the Afar depression in Africa, or Death Valley in the USA.
The temperature on Jupiter's surface is about 165K (-108°C). Planet Earth has a mean temperature of 287K (15°C). So Jupiter is approximately 8 times colder than earth. =)
Hot and cold are comparative terms. It is colder on Jupiter's surface than it is on Earth's surface, by mean. Wikipedia gives the mean surface temperature as 112-165 K, which translates to about -108 Celsius and lower (consider +21 Celsius is recognized as standard room temperature on earth). The coldest temperatures ever verified on earth seem to rank at around -90 Celsius in what are essentially uninhabitable areas. An important realization is that, due to many factors, Earth's temperature is extremely consistent. A mean temperature hides the fact that other planets undergo 'daily' cycles that range in temperature by hundreds of Celsius. If that happened on Earth, we wouldn't last very long. Caveats to this question/answer include: Fluctuations of temperature according to location on Jupiter/Earth, where Jupiter/Earth is in its orbit, where you even define 'surface' to be on a gas giant, etc etc.
The earths temperature varies for example living on the equator it would be hotter but up in the north lets say iceland it would be a lot colder so there is no real earths temperature(unless you get to the core of the earth)
Jupiter (in as far as we can measure into the atmosphere (it may be hotter near the core)The mean surface temperature of Mars is 227 KThe mean surface temperature of Jupiter is 165 K
Mean surface temperature: -63° C
Global warming is the increase in the average temperature of Earth's near-surface air and oceans since the mid-20th century.
the earth's crust is uneven
any period of time during which glaciers covered a large part of the earth's surface; "the most recent ice age was during the Pleistocene"
26.5
-150°C