Earth and Mars. The polar ice caps on mars are mainly CO2 ice, frozen carbon dioxide.
Although there are speculations of ice caps on several moons and planets outside of the solar system, the only confirmed planets within our solar system to possess them are Earth and Mars.
Pluto although entirely covered by ice, is no longer considered a planet. The only planets in our solar system with polar ice caps are Earth and Mars.
Mars and Earth
There are nine planets in the Solar System. Two of them have ice covering both of the poles, call Polar Ice Caps. These two planets are Earth and Mars.
3 planets.
Earth and Mars are the only planets known to have polar ice caps. Yes, I agree. However there is a possibility that Mercury has some ice in deep craters at the poles.
Earth and Mars are the only ones.
A polar ice cap is a high latitude part of a planet which is covered in ice. There are polar ice caps on other planets not just on earth. There is some known to be on Mars too. Polar ice caps form because of the lack of sunlight which gets to them. They are in the North and South pole.
No. Uranus does not have a solid surface for the caps to be on. Earth and Mars have polar ice caps.
yes polar ice caps are freshwater
Most planets in the Solar System have been found or speculated to have water. But at the moment only Earth is known to have water in the liquid state. Both polar caps on the planet Mars are known to have frozen water. It is also speculated that under the crust of some moons in the outer solar system, liquid H2O oceans may exist. Outside the solar system no one knows, but just recently astronomers have discover the exo-planet Gliese581g, which seems to be the right temperature that might support the existence of liquid water on its surface.
Neptune, the 8th planet from the sun, does not have polar ice caps. However, at least one of its moons, Titan, has polar ice caps.