As in grass on a lawn? Lol....no.
About as addictive as smoking grass clippings. Theoretically, yes, it can be addictive in a ritualistic sense, but there aren't any addictive compounds in marshmallow like there are in tobacco or opium.
i dont know this variety but most grasses can spread by clippings
use a blower or rake to get the clippings
of course they can
Yes and no. Some modern lawnmowers are designed to 'mulch' the grass. That is, when used without the grass collection box/bag, they chop the clippings very fine and dump them on the lawn as you mow. This, if done every second or third cut, actually helps the lawn by feeding it. The grass needs to be quite short already to do this. If it is too long the mower will continually clog. If you leave heavy grass clippings on you lawn you will prevent light from reaching the grass and therefore stop photosynthesis and the grass under the clippings will die.
grass (or any plants in general) is organic.
The grass clippings provide a great source of nitrogen for the grass. It is best to leave the clippings. It does help retain moisture. The grass clippings can even be used as a mulch for plant beds.
If it's a pile of grass left on the lawn after you mow it, cal it a clump of grass.
Grass clippings and other plant material can be returned to the environment for recycling if collected in a pot. This is keep the earth healthier.
If there are still alot of wet grass clippings on the ground I would not recommend it. Fresh clippings can easily impact a horse and cause them to colic. Remove the clippings or allow the clippings to dry throroughly before you put a horse in the pasture.
The Answer to your question is composting
As long as your grass is not treated with chemicals and if you wash the grass clippings with hot water, it should be okay. Hope I helped!