Which best describes how storm water runoff pollutes puget sound?
rain washes garbage into puget sound, which can poison and kill marine animals.
pollutants that build up in the air over populated cities wash into puget sound when it rains
rain washes pollutants off streets and into storm drains, which drain into puget sound.
polluted water washed into storm drains by rain is treated and drained into puget sound

Rain washes pollutants off streets and into storm drains, which drain into Puget Sound.

Explanation:

"Puget Sound" is a Pacific Ocean inlet that is located in Washington's northwestern coast. It is said that the name "Puget Sound" was given by George Vancouver in 1792, in honor of a lieutenant, Peter Puget, who was very helpful in guiding him through his expedition.

Puget Sound is home to many marine species, such as salmon, Pacific rods, harbor seals, Pacific herring and the like. However, some of these, like the "Olympia oysters," have been depleted because of human activities. The recession of many species in this area has been increasing over time. It is said that the inlet was contaminated with radioactive water in 1978, when a submarine accidentally released the radioactive water into Puget Sounds.

Another reason for its buildup of pollution is through the "storm water's run-off." When a storm comes, it hits infrastructure's roofs and other surfaces or pollutants. The debris are carried into the drains by rain and are then drained further into Puget Sound.

The toxic chemicals that are carried primarily comes from the roofing materials or human's everyday products.