They are dark green with a yellow band around there neck
in very long grass
About 6 years
It depends what species they are, an albino grass snake would not grow as long as an albino anaconda.
Most likely in a garden or long grass or a wet...swampy area
The vast majority are not dangerous, but some species pose a risk to humans. These include the yellow-bellied sea snake (Hydrophis platurus) and the coral snake (Micrurus fulvius). Most garter snakes are black or grey with at least one long, yellow stripe running from the neck to the tail.
That depends. The term "black snake" can apply to any number of snakes that are black. Species of snake described by the term range from less than 2 feet long to as much as 10 feet long. Other snakes of black coloration may be even smaller, barely reaching a foot in length.
30 to 50 years
Yes they do - they have a long spine running the length of their body.
brown
Sure, honey, you can use synthetic grass as a substrate for snakes. Just make sure it's clean and doesn't have any loose fibers that could be ingested. Snakes don't really care if it's real grass or fake grass, as long as it's comfy for them to slither on. Just keep it clean, and you're good to go, darling.
You would have to stand on it for a very, very long time for it to die. IO don't think it would be possible for you to stand there that long. Further answer: I have recently left a big stone on grass for a week, the grass turned yellow, but a week after the stone was lifted the grass has turned green again.