4.6 Billion Years
a long time ago a asteroid hit it making it tilt on it's axis
No it was actually Mercury. Some people say that a long time ago Mercury was really far from the sun and this made it habitable for life. But slowly Mercury got closer to the sun and the life just vanished. Now Mercury is too hot for any life to inhabit it.
Not so far as we know. If they were smaller than Mercury, they were probably pulled into the sun long ago. If they were larger than Mercury, we would certainly have detected and seen them by now.
probaly not
It is believed Mercury developed around the same time as the Earth did, about 4.6 billion years ago; as did all the other planets of the solar system.
Mercury's close proximity to the sun has caused it to lose any real atmosphere or gasses it may have had long ago. It's all rock.
None of the above. By all evidence obtained so far, satellite mappings, etc, Mercury as an "active" planet closed up shop long ago.
it used to, like a long time ago.
Both. Long time ago there was a aligator that lived in land and water.
From lakes and rivers and (much later) wells.
long ago, people discovered cinnabar ore. This ore was ground to make vermilion It was discovered that when cinnabar was heated, silver liquid came out. they named it mercury because the ore that it came from was the same color as the planet mercury. Hope this helped