Ключевые слова: adults only, analysis, analyzing, bacterium, biochemistry, biology, bottle, chemical, chemist, danger, disaster, ecological, ecology, ecosystem, environment, environmental, environmental conservation, examining, expertise, flask, glove, health, horizontal, inspector, laboratory, man, measuring, microbiology, nature, ocean, outdoor, person, plastic, polluted, pollution, problem, research, sample, science, scientist, sea, test, test tube, toxic, waste, water, working,