Ключевые слова: annual, aqua, awareness, blue, care, clean, commemoration, conservation, date, day, drop, earth, ecological, ecology, environment, environmental, event, freshwater, globe, gradient, holiday, illustration, label, life, liquid, management, march, natural, nature, nonrenewable, ocean, planet, postcard, poster, protection, resource, reuse, save, splash, squirt, stream, sustainable, typography, water, world, world water day,