If it falls as snow it can spend some time in a snow or ice-field before moving off as a glacier and perhaps eventually becoming part of an iceberg.
(it; falls; as snow) (it; can spend; some time; in a snow or ice-field; T:before moving off as a glacier and perhaps eventually becoming part of an iceberg)
it it
falls can spend
as snow
some time in a snow or ice-field T:before moving off as a glacier and perhaps eventually becoming part of an iceberg