Ключевые слова: algae, background, beach, blue, coast, color, danger, dirty, disaster, ecology, environment, environmental, garbage, green, lake, landscape, marine, mud, nature, ocean, pattern, plant, pollution, pond, problem, river, sea, season, seaweed, shore, spring, summer, surface, swamp, texture, tourism, toxic, trash, travel, tropical, unhygienic, waste, water, wave, wet,