Of the 8 planets (& 3 dwarf planets of which we know) in our own solar system, the most difficult one to live on would be Venus. Although any planet other than the Earth would be difficult to live on, and would require considerable technological support.
Bang it on the ground then listen to see if the sound comes back
Ceres is a dwarf planet [See related question] and does not have rings.
The second hardest mineral is moissanite, which is a naturally occurring mineral made of silicon carbide. The third hardest mineral is corundum, which includes gemstones like sapphires and rubies. Quartz ranks as number seven on the Mohs scale of mineral hardness, making it less hard than diamond, moissanite, and corundum.
Ceres is classified as a dwarf planet [See related question] it is the largest asteroid and only dwarf planet in the asteroid belt [See related question]
Yes, the planet is called Bellerophon. See link for more details.
No, we do not have a measure for the hardness of an entire planet.
go to ice or fire planet but fire is the hardest
Junior regino saucedos balls
No, but the Fire Planet seems to be the hardest of the three, even though it is closest to Poptropica. (see related question)
the osteocytes are the hardest part to see because they are so small
You can see me but now you don't where am i
It means United States Marines are the hardest bastards on the planet.
Its easy to cut a diamond if you know how to do it but its very hard to get the angle right, but they're the hardest substance on the planet.
all you do is try your hardest See related questions for help
There is no "Planet X". See links.
No you cant see your own planet your on it
You can go to any of the three planets in any order. Jungle Planet X-15 Y-15 Ice Planet X-73 Y-83 Fire Planet X-83 Y-20 (The fire planet is the hardest, but you must beat all three.)