yes polar ice caps are freshwater
no, they don't live in polar ice caps.
Mars, Earth, and Pluto have polar ice caps. Mars' polar ice caps are primarily made of water and carbon dioxide ice, Earth's polar ice caps are primarily made of frozen water, and Pluto's polar ice caps are a mixture of methane and nitrogen ice.
No plants, but animals, yes: you will find much more marine life beneath these ice-caps than above them. Seals, walruses and polar bears (Arctic) and penguins (Antarctic) are found above these polar ice caps.
No, nothing grows on ice caps.
Rain on the polar ice caps? Probably not; snow would be more common.
Global warming is melting the polar ice caps and they are slowly disappearing.
recession of glaciers and ice caps
Mars has polar ice caps at its north and south poles. These ice caps are primarily composed of water ice and carbon dioxide ice. The polar ice caps on Mars play a significant role in the planet's climate and atmospheric composition.
No. Uranus does not have a solid surface for the caps to be on. Earth and Mars have polar ice caps.
You can find ice caps on Mars, specifically at its polar regions. Both the north and south poles of Mars have ice caps composed of water and carbon dioxide.
At the polar ice caps, you can always find some ice. Probably more than "some" though.