Torrent - 1. A strong and fast-moving stream of water or other liquid.
2. A sudden, violent, and copious outpouring of (something, typically words or feelings).
If the underlined phrase is <em>Fog rolling down the river. </em>Then it is an Absolute phrase.
An absolute phrase is a combination of a noun and a participle accompanied by modifiers or objects.
Fog rolling down the river
Noun - Fog
Participle - rolling
modifiers - down the river.
A report shows that between 2005 and 2006, the birth rate for teenagers 15-19 years rose 3 percent<span>, from 40.5 live births per 1,000 females aged 15-19 years in 2005 to 41.9 births per 1,000 in 2006.</span>
