Seattle celebrates begin of summer by a) having solstice parade, b) hosting music festival, c) releasing 13, 000 gallons of wastewater into the Puget Sound. d) ... (opens in new tab)

Seattle celebrates begin of summer by a) having solstice parade, b) hosting music festival, c) releasing 13, 000 gallons of wastewater into the Puget Sound. d) all of the above