Pluto is probably nearly 50% water ice. Of course, it was demoted to "dwarf planet" status.
It is not because the rust on the planet makes the frozen water poisonous.
The Earth
Earth has, and it's been suggested that Mars may have.
the planet we live in
It is mostly in the form of water ice in sheltered parts of craters.
Pluto has a lot of frozen water, but it probably has more rock than ice. Anyway it's only a dwarf planet now. There are no other possible correct answers.
Europa has large amounts of frozen water. heather Danielle
No planet is composed of mainly frozen water; Mars has probably the most frozen water of all the planets after the Earth. However, older textbooks and teacher's notes may well refer to Pluto, which is now classed as only a "dwarf planet" and is composed of roughly 50-70 percent rock and 30-50 percent ice. So, although Pluto has a lot of ice, it has more rock than ice (frozen water).
Earth.
It is very likely that Earth is the planet with the largest amount of frozen water.
water was recently discovered on planet mars
This one
The surface of planet Earth is made up of 71% water.
It is not because the rust on the planet makes the frozen water poisonous.
The ice caps in the North pole of Mars compose of frozen water and frozen carbon dioxide and the ice caps on the South Pole consists mainly of of frozen water.
Earth is covered mostly in water, but is not made up mostly of water. Most of earth is made of rock.
It is a water planet. Although the mantle is termed icy - as is the convention in planetary science - it is, in fact, a hot dense fluid consisting of water, ammonia and methane.