Keywords
air pollution, bay, bleak, burlington bay, canada, chemical, chemicals, chemistry, climate change, color, color image, color images, color-image, colored, colorful, colors, colour, colour image, colour-image, colours, concept, concepts, conceptual, day, daylight, days, daytime, descriptors, deserted, desertion, ecological issues, environment, environmental, environmental concern, environmental concerns, environmental issue, environmental issues, environments, factories, factory, global warming, gray, grays, greenhouse effect, greenhouse gas, greenhouse gases, grey, greys, h20, hamilton, horizon, horizons, horizontal, horizontally, industrial, industries, industry, location, locations, metal, metalic, metals, nature, no one, nobody, noone, north america, object, objects, ontario, out-of-door, outdoor, outdoors, outside, photography, pollutant, pollutants, polluted, polluting, pollution, science, sciences, smoke, steel, steel mill, steel mills, steel plant, steel plants, sulfur, sulphur, sulphurous, time of day, travel, uninhabited, water, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u18366141