Taking a water test for analysis from a reservoir.
Keywords
test,
analysis,
chemical,
water,
environment,
pollution,
measurement,
hand,
health,
liquid,
research,
waste,
tube,
laboratory,
concept,
danger,
state,
biological,
infection,
study,
distribution,
close,
river,
impurity,
glove,
epidemic,
bacillus,
cholera,
nature,
substance,
material,
radiation,
utensil,
bottle,
wednesday,
sample,
lake,
swim,
duck pond,
ecology,
clarity,
biotechnology,
analysing,
experiment,
biology,
environmental,
test tube,
biochemistry